全 文 ：中国地衣新记录属———包被鳞核衣属?
孙中帅1 , 任 强1 , 刘华杰2 , 赵遵田1
??
( 1 山东师范大学生命科学学院 , 山东 济南 250014; 2 河北大学生命科学学院 , 河北 保定 071002 )
摘要 : 报道中国地衣 - 新记录属———包被鳞核衣属。该属主要特征 : 地衣体小鳞片状 , 子囊器为子囊壳 ,
着生于地衣体小鳞片之间 , 由一特化的外壁所包裹 , 子囊孢子较大。
关键词 : 地衣 ; 新记录属 ; 瓶口衣目
中图分类号 : Q 949.34 文献标识码 : A 文章编号 : 0253 - 2700 ( 2008) 06 - 655 - 02
Involucropyrenium ( Verrucariaceae) , a Lichen Genus New to China
SUN Zhong-Shuai1 , REN Qiang1 , LIU Hua-J ie2 , ZHAO Zun-Tian1 **
(1 Collegeof Life Sciences, Shandong Normal University, Jinan 250014 , China;
2 Collegeof Life Sciences, Hebei University, Baoding 071002 , China)
Abstract : The genus Involucropyreniumis reported fromChinafor the first time . It is characterized by aminutely squamu-
lose thallus, peritheciasituated between thesquamules, an involucrellumenvelopingthewholeascomata, andcomparative-
ly largeascospores .
Key words: Lichen; New record; Verrucariales
Extensive studies on the lichen family Verrucariaceae have
greatly clarified the taxonomy of this group ( Breuss, 1985 ,
1990 , 1996; Heidmarsson, 1998 ; Thomson, 1987 ; McCarthy,
1995) , notably through improved delimitations of existing genera
and the creation of new taxa, such as the genus Involucarcro-
pyrenum (Breuss, 1996) . This genuswas proposedto accommo-
date 4 species previously included in Catapyrenium, and hitherto
contains 8 species ( Breuss, 1996 ; Breuss and Türk, 2004 ) . It
is widespread in temperate regions (Kirk et al. , 2001) , but has
not been reported from China before .
Duringour recent fieldwork in Qilian Mountains, Northwest-
ern China, collections with a minutely squamulose thallus and
globose, black perithecia were subsequently identified as Involu-
cropyreniumwaltheri . Wepresent herethe speciesandthe occur-
rence of Involucropyreniumfrom China for thefirst time .
Materials and Methods
Specimens examined in the present study are deposited in
Lichen Section of Botanical Herbarium, Shandong Normal Uni-
versity (SDNU) .
For the study of morphology and anatomy, a dissectingmi-
croscope (Motic K-400L) and a light microscope ( JNOEC XS-
213) were used . Chemical substances in the lichen were exam-
ined by thin layer chromatography (TLC) ( Culberson, 1972) .
Results and Discussions
Involucropyrenium Breuss, Annln naturh . Mus . Wien,
Ser . B , Bot . Zool . 98 (Suppl .) : 37 ( 1996) Type species: In-
volucropyreniumwaltheri (Kremp .) Breuss
Thallusminutelysquamulose andcrust-like; closely adnate,
attached by a tufts of rhizohyphae or rhizines; isidia and soredia
absent; upper surface brownish or greenish gray to brown, dull;
ascomata perithecial, between the squamules, globose, with
clear involucrellum; periphyses present; asci clavate, 8-spored;
ascospores simple, hyaline, thin-walled, smooth, biseriately ar-
ranged; pycnidea absent .
云 南 植 物 研 究 2008 , 30 (6) : 655～656
Acta Botanica Yunnanica DOI : 10 .3724?SP. J . 1143 .2008.08063
?
?? ?Author for correspondence; E-mail : ztzhao@ sohu. com
Received date: 2008 - 04 - 11 , Accepted date: 2008 - 06 - 30
作者简介 : 孙中帅 (1985 - ) 男 , 在读硕士研究生 , 主要从事地衣资源与分类学研究。 ?
Foun ?dation items: The National Natural Science Fundation of China (39899400 ) andShandongProvincial Natural ScienceFoundation ( Y2007D21)
Fig . 1 Thallus of Involucropyreniumwaltheri showing
the minutely squamulose and crust-like thallus .
Scale= 1 mm, Sun Zhong-Shuai , 20071492 - 2
Fig . 2 Perithecia of Involucropyreniumwaltheri showing
the clear, entire involucrellum . Scale= 50μm,
Sun Zhong-Shuai , 20071492 - 2
Habitat: on soil , humus or rocks .
Involucropyrenium waltheri ( Kremp .) Breuss, Annln .
naturh. Mus . Wien, Ser . B , Bot . Zool . 98 ( Suppl .) : 38
(1996) . (Figs . 1 & 2)
≡ ?Catapyrenium waltheri ( Krempelh .) K?rber, Syst . Lich .
Germ . 325 . 1855
≡Verrucaria waltheri Krempelh, Flora38: 69 (1855) .
Thallus minutely squamulose; squamules 0 .5 - 1 .3 mm
wide, firmly adpressedandconfluent to formacontinuous, crust-
like cover over the substrate; upper surfacematt, fawn, not pru-
inose; rhizoidal hyphae black, forming a dense, dark hypothal-
lus . Perithecia black, spherical , semi-emergent, situated be-
tween the squamules, oftenaggregatedto groups or lines; exciple
dark brown to black; involucrellum black , entire, 25 - 30 μm
thick; periphysis simple, 30 - 40μm long; asci clavate, thin-
walled, 8-spored; ascospores 18 - 23×7 - 10μm, ovoid to clav-
ate, colorless, biseriate .
Chemistry : no lichen substances detected by TLC .
Habitat: on soil and humus .
Specimens examined: China . Qinghai Province: Menyuan
county, Mt . Lenglongling, alt . 3 600m . on soil .August 7th 2007 .
Zhao Zun-tian, 20070956; Qilian County, Mt . Niuxinshan, alt .
3 100 m . August 11th 2007 . Sun Zhong-shuai, 20071492 - 2 .
Comments: Involucropyrenium comprises 8 species
(Breuss and Türk, 2004 ) . Involucropyrenium waltheri can be
readily distinguishedfrom I . nuriense, I . tremniacenseand I . sq-
uamulosumby having entire involucrellum, while involucrellum
of the latter three is not entire . The rest 4 species ( I . llimonae,
I . sbarbaronis, I . terrigenum and I . pusillum) also have an en-
tire Involucrellum, but their rhizines arecolorless or brownish .
Acknowledgements : The authorswould like to acknowledgeDr .
Wang Hai-Ying for his valuable suggestions . They are also very
grateful toDr . CecileGueidan ( Instituteof theRoyal Academyof
Arts and Sciences, Netherlands) for providing them the useful
references .
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