全 文 ：广 西 植 物 Guihaia 29(3)：311— 313 2009年 5月
采自甘肃白龙江流域中国茶渍属
地衣的 =小 一 I 新记录种
吕 蕾 ，任 强1，孙立彦1，2，杨 芳1，赵遵田1
(1．山东师范大学 生命科学学院 ，济南 250014；2．泰山医学院，山东 泰安 271000)
摘 要：在对甘肃白龙江流域的茶渍属(Lecanora)地衣进行调查采集和鉴定的基础上，报道三个中
种：暗灰茶渍(L．cinereofusca H．Magn)，暗黄茶渍(L．flavidofusca Mal1．Arg．)和颗粒 茶渍 (L．
Brodo)。对每种给出了详尽的形态 、解剖和化学特征描述 ，并提供了每种的外部形态照片。
关键词：地衣；茶渍属；暗灰茶渍；暗黄茶渍；颗粒茶渍 ；中国新记录
中图分类号 ：Q939．5 文献标识码 ：A 文章编号：1000—3142(2009)03—0311-03
国新记录
perplexa
of the lichen genus Lecanora new to
Lti Lei ，REN Qiang ，SUN Li—Yan 一，YANG Fang1．ZHAO Zun—Tiana*
(1．College of Li Science，Shandong Normal University，Jinan 250014，China；
2．Taishan Medical Colege，Taian 271000，China)
Abstract：Three specm’s of the lichen genus Lecanora from Bailong River Valley，Gansu Province are reported new to
China．They are L．cinereofusca H．Magn．，L．flavidofusca Mt~l1．Arg．and L．perplexa Brodo．The detailed mor—
phological，anatomical and chemical descriptions of the species are given
． A short comment for each species is made
under the description．Photos of the thali are also presented
．
Key words：Lichen；Lecanora；L．cinereofusca；L．flavidofusca；L．perplexa；new record to China
The lichen genus Lecanora Ach．belongs to Le—
canoraceae，Lecanorales，Lecanoromyeetidae，Ascomy—
ceres，Ascomycota，Fungi(Kirk et a1．，2001)．It is one
of the most striking and widespread crustose lichen
genera which is characterized by having Lecanorine-
apothecia and Lecanora—type asci containing 8—32 hya—
line，simple spores(mostly 8 spores)．77 species，1 1
varieties and 5 forms have been reported from China，
three of them are muhispored(Wei，1 99 1；Aptroot＆
Seaward，1999；Mamut et a1
． ， 2004；Wang et a1．，
2007)．
Based on field work and identification of coilec—
tions from Bailong River Valley，Gansu Province，three
species of the lichen genus Lecanora new to China were
found and reported here．
1 Material and methods
A1l the specimens were collected from Bailong Riv—
er Valley．Bailong River is located in longitudes 101。40
一 105。20 E and latitudes 32。21 -35。50 N in the south—
ern part of Gansu Province．Being a tributary of Jialing
River of Yangtse River system and rising in the Min
Shan Mountains，the river iS about 600 km long
．
It flows
收稿日期：2007—11-07 修回日期：2008—09 06
基金项目：囡家自然科学基金(3o47。OO3)[supp0rted by the National Natural Science Foundation of China(30 170003)]
作者简介： 蕾(1983)，女，山东济南人，硕士研究生，从事地衣分类及系统学研究
*通讯作者(．~uthor for correspondence，E-mail：ztzhao@sohu．corn author)
312 广 西 植 物 29卷
through Deibu，Zhouqu，Wudu and Wenxian in an aver—
age gradient of about 30。， with drainage areal of about
27 400 kmz．The climate of the upper reaches is temperate-
humid，and that of the middle warm-humid，while that of
the lower reaches subtropical—humid． (Kang et al
1999)．
Al1 the specimens examined are preserved in the
Lichen Section of Botanical Herbarium，Shandong Nor—
mal University(SDNU)．
Thalli were examined and measured under dissec-
ting microscope (Motie K 4OOL) and apothecial sec—
tions were cut and then mounted in water for observa—
tion under light microscope(JNOECXS-213)．Photos
of the thali were taken under OLYM US SZX12 with
DP70．The chemi cal constituents were identified using
thin layer chromatography(TLC)(Culberson，1972)．
The term s of morphology and anatomy were used after
Brodo(1984)，Lumbsch et口Z．(1997)，and Guderley&
Lumbsch(1999)．
2 Results and discussions
2．1 Lecanora cinereofusca H．Magn，Medde1．
G6teborgs Bot．Tridg．7：86(1932)(Fig．1：A)
Thallus yellowish white to dark yelloweish grey，
continuous，smooth to verruculose，margin definte．
Prothalus absent．Apotheeia immersed in thalus，fi-
naly becoming sessile，(O．4)0．6—1．0(1．5)rnln in di—
am．，discs reddish orange to dark reddish brown，epru—
inose，margin verrucose to ridged and rough，becoming
discontinuous in many specimens．Amphithecium ：cor—
tex inspersed，12— 15 m lateraly，15— 20 m at base，
containing numerous large KOH—insoluble crystals
(Pulicaris—type according to Brodo 1984)．Epihymeni—
um granular with coarse crystals which dissolve in con—
centrated HN 0=；(Chlarotera—type according to Brodo
1984)，pigmented red—brown，7．5— 12．5 m tal1．Hy—
menium hyaline，47．5— 67．5／*m tal1．Asci ciavate，8一
spored。ascospores hyaline，simple，broadly ellipsoid，
(6．0)7．5— 12．5(15)×4．5— 7．0 m．
Chemi stry：atranorin，pannarin，placodialic acid．
Habitat：on bark．
Specimen examined：Gansu：Diebu，Yiwagou，
Fig．1 A．Morphology of Lecanora cinereofusea H．
Magn，Scale一 2 mm，Yang Fang & Shi Xiu～Li，
061669；B．Morphology of Lecanora flavidofusca
Mul1．Arg．，Scale= 2 mm ，W ang Chen—Lei Ln Lei，
061 181；C．Morphology of Lecanora perplexa Brodo，
Scale=2 ITlm，Shi Xiu—Li＆ Yang Fang，061794．
alt．3 680 m，2006／VlI／25，Shi Xiu—Li& Han Guo—
Ying，060064；Zhouqu，Huacaopoxigou，alt．3 400
m，2006／Ⅶ／29，Yang Fang& Shi Xiu_Li，061074；
Wenxian，Qiujiaba，alt．2 350 m，2006／Ⅷ／3，Wang
Chen—Lei& LU Lei。061822．
Discussion：Lecanora cinereofusca is readily dis—
ringuished by its verrucose to discontinuous apothecial
margins and containing pannarin，placodialic acid．It is
sim lar to L．cinereocarnea in morphology but differs in
having different chemistry constitute，the former con—
tains pannarin and placodialic acid but the 1atter con—
3期 吕蕾等：采自甘肃白龙江流域中国茶渍属地衣的三个新记录种 313
tains gangaleoidin．
World distribution：a circumpolar element species
occurring in North America，Central Europe and East—
ern Asia(Brodo，1984)．
2．2 Lecanora flavidofusca Mil1．Arg．。Bul1．Herb．
Boisier 3：633(1895)(Fig．1：B)
Thallus yellowish white to yelowish grey，
smooth，continuous or verrucose—areolate，margin indef—
mi te．Prothalus absent．Apothecia sessile，(0．3)0．5
～ l_0(1．3)mm in diam．，discs red～brown to dark
brown，epfinose，margin concolorous with thalus，even
or prominent，smoth．Amphithecium：cortex indistinct，
lO一 20 fm laterally，10— 20 m at base，containing
numerous small KOH—insoluble crystals(Allophana—
type according to Brodo 1984)．Epihymenium insper—
sed with fine granules (Pulicaris-type according to
Brodo 1984)，pigmented orange-brown，7．5— 15 ptm
tal1．Hymenium hyaline，47．5—75 m tal1． Asci cla—
vate，8一spored，ascospores hyaline，simple，ellipsoid，7．5
一 l3×4．5—8 m．
Chemistry： atranorin， usnic acid， zeorin，
arthothelin．
Habitat：on bark．
Specimen examined：Gansu：Diebu，Dalagou，
ah．2 700 m，2006／~／26，Shi Xiu—Li＆ Yang Fang，
060409；Zhouqu，Huacaopoxigou，alt．3 300 m，2006／
~[／29，Yang Fang ＆ Shi Xiu—Li，060961；Zhouqu，
Yangbuliang，alt．3 300 nl，2006／Ⅶ／29，Wang Chen-
Let＆ LU Let，061181．
Discussion．Lecanora flavidofusea is readily dis—
tinguished by its relatively dark brown apothecial
discs，granulose epihymenium ，and the presence of
usnic acid．It is closely related to L．alba，which，how—
ever，can be distinguished by the egranulose epihymeni—
um，and smaller ascospores．
World distribution：pantropical element，recorded
from Australasia，North America，and the Pacific Area
．
(Ryan et a1．，2004)
2．3 Lecanora perplexa Brodo，Beih．Nova Hedwigia
79：148(1984)(Fig．1：C)
Thallus white to yellowish grey，verruculose to
granulose，usually thick，margin definite． Prothallus
absent．Apothecia sessile，0．4— 1．0(1．5)mm in di—
am．，discs reddish—brown，epruinose，margin thick，
flexuose or verrucose． Amphithecium：cortex indis—
tinct，12—18 fm thick，or absent，containing numerous
large KOH～insoluble crystals(P n —type according
to Brodo 1 984)．Epihymenium orange-brown，pigmen—
tation not altered by KOH，without crystals(GZⅡ6r口fⅡ一
type according to Brodo 1984)，5— 12．5 pm high．Hy—
menium hyaline，5O——62．5 fm tal1． Asci clavate，8
spored，ascospores hyaline，simple，ellipsoid，6．5～ 9．5
(1：{)×4．5—5．5(7．5)fm．
Chemistry：atranorin，zeorin．
Habitat：on bark or rock．
Specimen examined：Gansu：Wenxian，Qiujiaba，
alt．2 350 m，2006／Ⅷ／3，Wang Chen-Lei& L Let，
061633；alt．2 500 m，2oo6／Ⅷ／4，Yang Fang & Shi
Xiu-Li，061982；alt．2 600 m，2006／Ⅷ／4，Yang Fang
Shi Xiu—Li，062049．
Discussion：Lecanora perplexa is very easy to be
distinguished from other species of Lecanora for its
very obvious granulose thalus，large amphithecial crys—
tals and containing zeorin．
World distribution：an East Asian—North Ameri—
can disj unctive element species occurring in North A—
merica(Brodo，1984)and China．
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