Water relations and photosynthetic characteristics in different functional groups of epiphytic lichens in montane forest of Ailaoshan

doi:10.17521/cjpe.2015.0445

Abstract

Abstract:

Aims There are abundant epiphytic lichens in the tropical and subtropical montane forest ecosystems, which are important components of forest canopy and play a vital role in biodiversity conservation, environmental monitoring and nutrient cycling. In accordance with photobiont type, growth form and reproductive strategy, the epiphytic lichens can be divided into different functional groups, with different distribution patterns. In this study we aim to explain this phenomenon from the perspective of physiological ecology. Methods The maximum water content, water loss curves, photosynthetic water and light response curves were determined in four epiphytic lichen functional groups, including cyanolichens, fruticose lichens, broadly lobed foliose lichens and narrowly lobed foliose lichens. Important findings The functional characteristics of epiphytic lichens influence their maximum water-holding capacity and rate of water loss. The cyanolichens have higher maximum water content, while the fruticose lichens have a faster water loss. The cyanolichens that are widely distributed in the moist habitats require particularly high moisture for their photosynthetic activities; their optimal water content for photosynthesis is higher in comparison with other groups. They also have a low light compensation point and a high light saturation point, which explain the wide range of light intensity of the habitat. The fruticose lichens, widely distributed in the relatively arid habitats with high irradiance, have high light compensation point and light saturation point, and low optimum water content for photosynthesis. The broadly lobed foliose lichens and the narrowly lobed foliose lichens have a high light compensation point and light saturation point; they preferably occur in habitats with strong light.

http://jtp.cnki.net/bilingual/detail/html/ZWSB201608007

Key words: epiphytic lichen, functional groups, water relation, photosynthesis, poikilohydry

Tao HU, Su LI, Shuai LIU, Wen-Yao LIU, Xi CHEN, Liang SONG, Quan CHEN. Water relations and photosynthetic characteristics in different functional groups of epiphytic lichens in montane forest of Ailaoshan[J]. Chin J Plant Ecol, 2016, 40(8): 810-826.

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References 81

[1]	Aptroot A (1997). Lichen biodiversity in Papua New Guinea, with the report of 173 species on one tree. In: Türk R, Zore R eds. Progress and Problems in Lichenology in the Nineties. Bibliotheca Lichenologica, Berlin, Germany. 203-213.
[2]	Aptroot A, Sipman HJM (1997). Diversity of lichenized fungi in the tropics. In: Hyde KD ed. Biodiversity of Tropical Microfungi. Hong Kong University Press, Hong Kong, China. 93-106.
[3]	Chen K, Liu WY, Li S, Song L (2014). Photosynthetic characteristics of three epiphytic lichens under different water conditions. Plant Diversity and Resources, 36, 603-610. (in Chinese with English abstract)[陈克, 刘文耀, 李苏, 宋亮 (2014). 不同水分条件下三种附生地衣的光合作用特性. 植物分类与资源学报, 36, 603-610.]
[4]	Cislaghi C, Nimis PL (1997). Lichens, air pollution and lung cancer. Nature, 387, 463-464.
[5]	Cornelissen JHC, Lang SI, Soudzilovskaia NA, During HJ (2007). Comparative cryptogam ecology: A review of bryophyte and lichen traits that drive biogeochemistry. Annals of Botany, 99, 987-1001.
[6]	Cornelissen JHC, Steege HT (1989). Distribution and ecology of epiphytic bryophytes and lichens in dry evergreen forest of Guyana. Journal of Tropical Ecology, 5, 29-35.
[7]	DÍaz S, Cabido M (2001). Vive la difference: Plant functional diversity matters to ecosystem processes. Tends in Ecology & Evolution, 16, 646-655.
[8]	Ellis CJ, Coppins BJ (2006). Contrasting functional traits maintain lichen epiphyte diversity in response to climate and autogenic succession. Journal of Biogeography, 33, 1643-1656.
[9]	Ellis CJ, Coppins BJ (2007). Changing climate and historic-woodland structure interact to control species diversity of the ‘Lobarion’ epiphyte community in Scotland. Journal of Vegetation Science, 18, 725-34.
[10]	Ellis CJ, Coppins BJ (2010). Integrating multiple landscape- scale drivers in the lichen epiphyte response: Climatic setting, pollution regime and woodland spatial-temporal structure. Diversityand Distributions, 16, 43-52.
[11]	Esseen PA, Olsson T, Coxson D, Gauslaa Y (2015). Morphology influences water storage in hair lichens from boreal forest canopies. Fungal Ecology, 18, 26-35.
[12]	Galun M (1988). Handbook of Lichenology. CRC Press, Boca Raton, USA.
[13]	Gauslaa Y, Coxson DS (2011). Interspecific and intraspecific variations in water storage in epiphytic old forest foliose lichens. Botany, 89, 787-798.
[14]	Geiser LH, Neitlich PN (2007). Air pollution and climate gradients in western Oregon and Washington indicated by epiphytic macrolichens. Environment Pollution, 145, 203-218.
[15]	Giordani P (2007). Is the diversity of epiphytic lichens a reliable indicator of air pollution? A case study from Italy. Environmental Pollution, 146, 317-323.
[16]	Giordani P, Brunialti G, Bacaro G, Nascimbene J (2012). Functional traits of epiphytic lichens as potential indicators of environmental conditions in forest ecosystems. Ecological Indicators, 18, 413-420.
[17]	Giordani P, Incerti G (2008). The influence of climate on the distribution of lichens: A case study in a borderline area (Liguria, NW Italy). Plant Ecology, 195, 257-272.
[18]	Giordani P, Incerti G, Rizzl G, Rellini I, Nimis PL, Modenesi P (2014). Functional traits of cryptogams in Mediterranean ecosystems are driven by water, light and substrate interactions. Journal of Vegetation Science, 25, 778-792.
[19]	Glime JM (. Cited: 2012-06-20.
[20]	Goward T, Arsenault A (2000). Cyanolichen distribution in young unmanaged forests: A dripzone effect? The Bryologist, 103, 28-37.
[21]	Gradstein SR (1992). The vanishing tropical rain forest as an environment for bryophytes and lichens. In: Bates JW, Farvner AM eds. Bryophytes and Lichens in a Changing Environment. Clarendon Press, Oxford, UK. 234-258.
[22]	Green TGA, Büdel B, Meyer A, Zellner H, Lange OL (1997). Temperate rainforest lichens in New Zealand: Light response of photosynthesis. New Zealand Journal of Botany, 35, 493-504.
[23]	Green TGA, Lange OL (1994). Photosynthesis of poikilohydric plants: Lichens and bryophytes—A comparison. In: Schulze DE, Caldwell MM eds. Ecophysiology of Photosynthesis. Springer-Verlag, Berlin. 319-342.
[24]	Green TGA, Sancho LG, Pintado A (2011).Ecophysiology of desiccation/rehydration cycles in mosses and lichens. In: Lüttge U, Beck E, Bartels D eds. Plant Desiccation Tolerance. Springer-Verlag, Berlin, Germany. 89-120.
[25]	Gustafsson L, Eriksson I (1995). Factors of importance for the epiphytic vegetation aspen Populus tremula with special emphasis on chemistry and soil chemistry. Journal of Applied Ecology, 32, 412-424.
[26]	Hartard B, Cuntz M, Maguas C, Lakatos M (2009). Water isotopes in desiccating lichens. Planta, 231, 179-193.
[27]	Hauck M, Dulamsuren C, Mühlenberg M (2007). Lichen diversity on steppe slopes in the northern Mongolian mountain taiga and its dependence on microclimate. Flora, 202, 530-546.
[28]	Hauck M, Spribille T (2005). The significance of precipitation and substrate chemistry for epiphytic lichen diversity in spruce-fir forests of the Salish Mountains, northwestern Montana. Flora, 200, 547-562.
[29]	Holz I, Gradstein SR (2005). Cryptogamic epiphytes in primary and recovering upper montane oak forests of Costa Rica—Species richness, community composition and ecology. Plant Ecology, 178, 89-109.
[30]	Honegger R, Peter M, Scherrer S (1996). Drought-induced structural alterations at the mycobiont-photobiont interface in a range of foliose macrolichens. Protoplasma, 190, 221-232.
[31]	Johansson P (2008). Consequences of disturbance on epiphytic lichens in boreal and near boreal forests. Biological Conservation, 141, 1933-1944.
[32]	Jovan S, McCune B (2004). Regional variation in epiphytic macrolichen communities in northern and central California forests. Bryologist, 107, 328-339.
[33]	Lakatos M, Lange-Bertalot H, Büdel B (2004). Diatoms living inside the thallus of the green algal lichen Coenogonium linkii in neotropical lowland rain forests. Journal of Phycology, 40, 70-73.
[34]	Lakatos M, Rascher U, Büdel B. (2006). Functional character- istics of corticolous lichens in the understory of a tropical lowland and rain forest. New Phytologist, 172, 679-695.
[35]	Lange OL (1980). Moisture content and CO2 exchange in lichens. I. In?uence of temperature on moisture dependent net photosynthesis and dark respiration in Ramalina maciformis. Oecologia, 45, 82-87.
[36]	Lange OL (2002). Photosynthetic productivity of the epilithic lichen Lecanora muralis: Long-term field monitoring of CO2 exchange and its physiological interpretation. I. Dependence of photosynthesis on water content, light, temperature, and CO2 concentration from laboratory measurements. Flora, 197, 233-249.
[37]	Lange OL, Büdel B, Heber U, Meyer A, Zellner H, Green TGA (1993). Temperate rainforest lichens in New Zealand: High thallus water content can severely limit photosynthetic CO2 exchange. Oecologia, 95, 303-313.
[38]	Lange OL, Büdel B, Meyer A, Zellner H, Zotz G (2004). Lichen carbon gain under tropical conditions: Water relations and CO2 exchange of three Lobariaceae species of a lower montane rainforest in Panama. Lichenologist, 36, 329-334.
[39]	Lange OL, Green TGA, Reichenberger H, Meyer A (1996). Photosynthetic depression at high thallus water content in lichens: Concurrent use of gas exchange and fluorescence techniques with a cyanobacterial and a green algal Peltigera species. Botanica Acta, 109, 43-50.
[40]	Lange OL, Matthes U (1981). Moisture-dependent CO2 exchange of lichens. Photosynthetica, 15, 555-574.
[41]	Lange OL, Meyer A, Ullmann I, Zellner H (1991). Mikroklima, Wassergehalt und Photosynthese von Flechten in der küstennahen Nebelzone der Namib-Wüste: Messungen während der herbstlichen Witterungsperiod. Flora, 185, 233-266.
[42]	Lange OL, Meyer A, Zellner H, Heber U (1994). Photosynthesis and water relations of lichen soil crusts—Field measurements in the coastal fog zone of the Namib Desert. Functional Ecology, 8, 253-264.
[43]	Lange OL, Ziegler H (1986). Different limiting processes of photosynthesis in lichens. In: Marcelle R, Clijsters H, van Poucke M eds. Biological Control of Photosynthesis. Martinus Nijhoff Publishers, Dordrecht. 147-161.
[44]	Larson DW (1981). Differential wetting in some lichens and mosses: The role of morphology. The Bryologist, 84, 1-15.
[45]	Larson DW, Kershaw KA (1976). Studies on lichen-dominated systems XVIII. Morphological control of evaporation in lichens. Canadian Journal of Botany, 54, 2061-2073.
[46]	Li S, Liu WY, Li DW (2013a). Bole epiphytic lichens as potential indicators of environmental change in subtropical forest ecosystems in southwest China. Ecological Indicators, 29, 93-104.
[47]	Li S, Liu WY, Li DW (2013b). Epiphytic lichens in subtropical forest ecosystems in southwest China: Species diversity and implications for conservation. Biological Conservation,159, 88-95.
[48]	Li S, Liu WY, Shi XM, Liu S, Hu T, Huang JB, Chen X, Song L, Wu CS (2015). Responses of the distribution of four epiphytic cyanolichens to habitat change in subtropical forests. Chinese Journal of Plant Ecology, 39, 217-228. (in Chinese with English abstract)[李苏, 刘文耀, 石贤萌, 柳帅, 胡涛, 黄俊彪, 陈曦, 宋亮, 武传胜 (2015). 亚热带森林生态系统4种附生蓝藻地衣的分布对生境变化的响应. 植物生态学报, 39, 217-228.]
[49]	Li S, Liu WY, Wang LS, Ma WZ, Song L (2011). Biomass, diversity and composition of epiphytic macrolichens in primary and secondary forests in the subtropical Ailao Mountains, southwest China. Forest Ecology and Management, 261, 1760-1770.
[50]	Li S, Liu WY, Wang LS, Yang GP, Li DW (2007). Species diversity and distribution of epiphytic lichens in the primary and secondary forests in Ailao Mountain, Yunnan. Biodiversity Science, 15, 445-455. (in Chinese with English abstract)[李苏, 刘文耀, 王立松, 杨国平, 李达文 (2007). 云南哀牢山原生林及次生林群落附生地衣物种多样性与分布. 生物多样性, 15, 445-455.]
[51]	Liu WY, Fox JED, Xu ZF (2002). Nutrient fluxes in bulk precipitation, throughfall and stemflow in montane moist evergreen broad-leaved forest on Ailao Mountain in Yunnan, SW China. Journal of Tropical Ecology, 18, 527-548.
[52]	Liu Y, Zhang YP, Liu YH, Gao F, Gong HD (2009). Climate change from 1980 to 2005 in the Ailao Mountains, Southwest China. Journal of Mountain Research, 27, 203-210. (in Chinese with English abstract)[刘洋, 张一平, 刘玉洪, 高富, 巩合德 (2009). 哀牢山北段地区气候特征及变化趋势. 山地学报, 27, 203-210.]
[53]	Liu YH (1993). Study on climate characteristics of evergreen broad-leaf forest on Ailao Mountain. Scientia Silvae Sinicae, 29, 547-552. (in Chinese with English abstract)[刘玉洪 (1993). 哀牢山常绿阔叶林地的气候特征研究. 林业科学, 29, 547-552.]
[54]	Ma WZ (2009). The Composition and Biomass of Epiphytic Materials and Their Relationships with Ecological Factors in Xujiaba Region form Ailao Mountain, Yunnan. PhD dissertation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming. (in Chinese)[马文章 (2009). 云南哀牢山徐家坝地区附生(植)物的组成、生物量及其与生态因子的关系. 博士学位论文, 中国科学院西双版纳热带植物园, 昆明.]
[55]	Marini L, Nascimbene J, Nimis PL (2011). Large-scale patterns of epiphytic lichen species richness: Photobiont-dependent response to climate and forest structure. Science of the Total Environment, 409, 4381-4386.
[56]	McCune B (1993). Gradients in epiphyte biomass in three Pseudotsuga-Tsuga forests of different ages in western Oregon and Washington. The Bryologist, 96, 405-411.
[57]	Montfoort D, Ek R (1990). Vertical distribution and ecology of epiphytic bryophytes and lichens in a lowland rain forest in French Guyana. PhD dissertation, University of Utrecht, Utrecht, the Netherlands.
[58]	Nascimbene J, Brunialti G, Ravera S, Frati L, Caniglia G (2010). Testing Lobaria pulmonaria (L.) Hoffm as an indicator of lichen conservation importance of Italian forests. Ecological Indicators, 10, 353-360.
[59]	Nimis PL, Martellos S (. Cited: 2015-12-07.
[60]	Palmqvist K (2000). Carbon economy in lichens. New Phytologist, 148, 11-36.
[61]	Pintado A, Valladares F, Sancho LG (1997). Exploring phenol- typic plasticity in the lichen Ramalina capitata: Morphol- ogy, water relations and chlorophyll content in north- and south-facing populations. Annals of Botany, 80, 345-353.
[62]	Ricotta C, Bacaro (2010). On plot to plot dissimilarity measures based on species functional traits. Community Ecology, 11, 113-119.
[63]	Rikkinen J (2009). Relations between cyanobacterial symbionts in lichens and plants. In: Pawlowski K ed. Prokaryotic Symbionts in Plants. Springer, Berlin. 265-270.
[64]	Sala OE, Chapin III FS, Armesto JJ, Berlow E, Bloomfield J, Dirzo R, Huber-Sanwald E, Huenneke LF, Jackson RB, Kinzig A, Leemans R, Lodge DM, Mooney HA, Oesterheld M, Poff NL, Sykes MT, Walker BH, Walker M, Wall DH (2000). Global biodiversity scenarios for the year 2100. Science, 287, 1770-1774.
[65]	Sancho LG, Kappen L (1989). Photosynthesis and water rela- tions and the role of anatomy in Umbilicariaceae (lichens) from Central Spain. Oecologia, 81, 473-480.
[66]	Sipman HJM, Harris RC (1989). Lichens. In: Lieth H, Werger MJA eds. Tropical Rain Forest Ecosystems (Bio- geographical and Ecological Studies), Ecosystems of the World 14B. Elsevier, Amsterdam, USA. 303-309.
[67]	Sipman HJM, Tan BC (1990). A field impression of the lichen and bryophyte zonation on Mount Kinabalu. Flora Malesiana Bulletin, 10, 241-244.
[68]	Song L, Zhang YJ, Chen X, Li S, LU HZ, Wu CS, Tan ZH, Liu WY, Shi XM (2015). Water relations and gas exchange of fan bryophytes and their adaptations to microhabitats in an Asian subtropical montane cloud forest. Journal of Plant Research, 128, 573-584.
[69]	Travis JMJ, Brooker RW, Clark, EJ, Dytham C (2006). The distribution of positive and negative species interactions across environmental gradients on a dual-lattice model. Journal of Theoretical Biology, 241, 896-902.
[70]	Webb CT, Hoeting JA, Arns GM, Pyne MI, Poff NL (2010). A structured and dynamic framework to advance traits-based theory and prediction in ecology. Ecology Letters, 13, 267-283.
[71]	Xu HQ, Liu WY (2005). Species diversity and distribution of epiphytes in the montane moist evergreen broad-leaved forest in Ailao Mountain, Yunnan. Biodiversity Science, 13, 137-147.[徐海清, 刘文耀 (2005). 云南哀牢山山地湿性常绿阔叶林附生植物的多样性与分布. 生物多样性, 13, 137-147.]
[72]	Yao YL, Liu WY, Ma WZ, Song L (2012). Species composition and diversity of epiphytes of several ecotones in Ailao Mountain National Nature Reserve, Yunnan. Biodiversity Science, 20, 654-664. (in Chinese with English abstract)[姚元林, 刘文耀, 马文章, 宋亮 (2012). 云南哀牢山国家保护区几个过渡带树干附生苔藓的物种组成与多样性. 生物多样性, 20, 654-664.]
[73]	Ye ZP (2007). A new model for relationship between light intensity and the rate of photosynthesis in Oryza sativa. Photosynthetica, 45, 637-640.
[74]	Ye ZP (2010). A review on modeling of responses of photosynthesis to light and CO2. Chinese Journal of Plant Ecology, 34, 727-740. (in Chinese with English abstract)[叶子飘 (2010). 光合作用对光和CO2响应模型的研究进展. 植物生态学报, 34, 722-740.]
[75]	You CX (1983). Classification of vegetation in Xujiaba region in Ailao Mts. In: Wu ZY ed. Research of Forest Ecosystems on Ailao Mountains, Yunnan. Yunnan Science and Technology Press, Kunming. 74-117.(in Chinese). [游承侠 (1983). 哀牢山徐家坝地区的植被分类. 见: 吴征镒主编. 云南哀牢山森林生态系统研究. 云南科技出版社, 昆明. 74-117.]
[76]	Young SS, Herwitz SR (1995). Floristic diversity and co- occurrences in a subtropical broad-leaved forest and two contrasting regrowth stands in central-west Yunnan Province, China. Vegetatio, 119, 1-13.
[77]	Zedda L, Kong SM, Rambold G (2011). Morphological groups as a surrogate for soil lichen biodiversity in Southern Africa. In: Bates ST, Bungartz F, Lücking R, Herrera- Campos MA, Zambrano A eds. Biomonitoring, Ecology, and Systematics of Lichens Festschrift Thomas H. Nash III, Bibliotheca Lichenologica 106. Borntraeger Verlagsbuchhandlung, Stuttgart. 391-408.
[78]	Zhu H, Yan LC (2009). List of Seed Plants in the Ailao Mts. of Yunnan Province, China. Yunnan Science and Technology Press, Kunming. (in Chinese)[朱华, 闫丽春 (2009). 云南哀牢山种子植物. 云南科技出版社, 昆明.]
[79]	Zotz G, Büdel B, Meyer A, Zellner H, Lange OL (1998). In situ studies of water relations and CO2 exchange of the tropical macrolichen, Sticta tomentosa. New Phytologist, 139, 525-535.
[80]	Zotz G, Schultz S, Rottenberger S (2003). Are tropical lowlands a marginal habitat for macrolichens? Evidence from a field study with Parmotrema endosulphureum in Panama. Flora, 198, 71-77.
[81]	Zotz Z, Winter K (1994). Photosynthesis and carbon gain of the lichen, Leptogium azureum, in lowland tropical forest. Flora, 189, 179-186.

功能群 Functional group	简称 Abbreviation	功能群特征 Functional traits
蓝藻地衣 Cyanolichens	CYL	共生藻为蓝藻或包含蓝藻 With cyanobacteria
枝状地衣 Fruticose lichens	FRL	枝状或灌丛状, 共生藻为绿藻 Fruticose, with green algae
阔叶地衣 Broadly lobed foliose lichens	BFL	大型阔叶状, 共生藻为绿藻 Broadly lobed foliose, with green algae
狭叶地衣 Narrowly lobed foliose lichens	NFL	小型或中型细叶状, 共生藻为绿藻 Narrowly lobed foliose, with green algae

功能群 Functional group	简称 Abbreviation	功能群特征 Functional traits
蓝藻地衣 Cyanolichens	CYL	共生藻为蓝藻或包含蓝藻 With cyanobacteria
枝状地衣 Fruticose lichens	FRL	枝状或灌丛状, 共生藻为绿藻 Fruticose, with green algae
阔叶地衣 Broadly lobed foliose lichens	BFL	大型阔叶状, 共生藻为绿藻 Broadly lobed foliose, with green algae
狭叶地衣 Narrowly lobed foliose lichens	NFL	小型或中型细叶状, 共生藻为绿藻 Narrowly lobed foliose, with green algae

物种 Species	单位干质量持水量 Water-holding capacity per dry mass (n = 10)	最大含水量 Maximum water content (% dry mass)	T₈₀ (h)	T₅₀ (h)	T₂₀ (h)
皮革肾岛衣 Nephromopsis pallescens	3.01 ± 0.09^cd	308.8	0.59	1.77	3.78
针芽肺衣 Lobaria isidiophora	2.84 ± 0.16^d	315.1	0.61	1.83	3.86
网肺衣 Lobaria retigera	3.76 ± 0.20^bcd	373.1	0.63	1.87	3.82
猫耳衣 Leptogium menziesii	10.49 ± 0.49^a	1 104.1	1.03	2.94	5.64
云南袋衣 Hypogymnia yunnanensis	5.01 ± 0.30^abc	473.6	0.56	1.69	3.69
白绵腹衣 Anzia leucobatoides	5.70 ± 0.19^ab	514.2	1.83	4.85	8.28
多花松萝 Usnea florida	3.22 ± 0.09^cd	193.6	0.4	1.26	3.14
裂髓树花 Ramalina conduplicans	6.07 ± 0.18^ab	449.2	0.48	1.48	3.41

物种 Species	单位干质量持水量 Water-holding capacity per dry mass (n = 10)	最大含水量 Maximum water content (% dry mass)	T₈₀ (h)	T₅₀ (h)	T₂₀ (h)
皮革肾岛衣 Nephromopsis pallescens	3.01 ± 0.09^cd	308.8	0.59	1.77	3.78
针芽肺衣 Lobaria isidiophora	2.84 ± 0.16^d	315.1	0.61	1.83	3.86
网肺衣 Lobaria retigera	3.76 ± 0.20^bcd	373.1	0.63	1.87	3.82
猫耳衣 Leptogium menziesii	10.49 ± 0.49^a	1 104.1	1.03	2.94	5.64
云南袋衣 Hypogymnia yunnanensis	5.01 ± 0.30^abc	473.6	0.56	1.69	3.69
白绵腹衣 Anzia leucobatoides	5.70 ± 0.19^ab	514.2	1.83	4.85	8.28
多花松萝 Usnea florida	3.22 ± 0.09^cd	193.6	0.4	1.26	3.14
裂髓树花 Ramalina conduplicans	6.07 ± 0.18^ab	449.2	0.48	1.48	3.41

物种 Species	最适水分含量 Optimal water content (% dry mass)	水分补偿点 Water compensation point (% dry mass)	初始斜率 Initial slope
皮革肾岛衣 Nephromopsis pallescens	232.6	24.2	0.75
针芽肺衣 Lobaria isidiophora	119.0	16.0	2.11
网肺衣 Lobaria retigera	172.9	44.4	1.11
猫耳衣 Leptogium menziesii	419.5	16.3	0.50
云南袋衣 Hypogymnia yunnanensis	175.0	22.3	0.98
白绵腹衣 Anzia leucobatoides	298.9	19.7	0.64
多花松萝 Usnea florida	93.0	27.0	2.59
裂髓树花 Ramalina conduplicans	139.4	33.7	1.92