Page 29 - 《广西植物》2020年第10期
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1 4 1 2 广 西 植 物 40 卷
23°03′41″ Nꎬ 104°50′42″ Eꎬ at elevation 1 200-1 400 m is easily damaged by deforestation and cultivation of black
a.s. l. Lithophytic herb on vertical shady cliffꎬ flowers Cardamom in Tùng Vài comm.ꎬ and collecting firewood in
bluish purpleꎬ rareꎬ 22 April 2018ꎬ L. Averyanovꎬ both Tùng Vài and Thanh Vân communes. Applying the
Nguyen S. K.ꎬ Nguyen T. H.ꎬ Nguyen Q. H.ꎬ Chuong Geospatial Conservation Assessment Tool ( http:/ /
Q. N.ꎬ T. Maisak & Le N. D.ꎬ VR 606 (LE). geocat.kew.org/ editor)ꎬ the EOO and AOO of P. martinii
2
China. Yunnan Prov.ꎬ Luoping Countyꎬ Dabailashanꎬ in Vietnam are less than 15 km . Following the Guidelines
limestone hillꎬ under broad ̄leaved evergreen closed forestꎬ for Using the IUCN Red List Categories and Criteria
at elevation about 2 400 m a. s. l. Herb on nearly vertical version 13 ( IUCNꎬ 2017)ꎬ the conservation status of
mossy shady cliffꎬ 3 June 1990ꎬ Hongshuihekaochadui P. martinii in Vietnam should be assessed provisionally as
(Hongshuihe Expedition) 1990 (PE)ꎻ Yunnan Prov.ꎬ Vulnerable B1+2aꎬb (iiꎬiii)ꎻ D2.
Funing Countyꎬ Lung ̄ami. rocky cliff and rocky crevicesꎬ Petrocosmea sericea C. Y. Wu ex H. W. Li in
at elevation about 1 000 m a. s. l.ꎬ 9 May 1940ꎬ C. Bull. Bot. Res.ꎬ Harbinꎬ 3(2): 21ꎬ photo. 11. 1983ꎻ
W. Wang 87130 (PE)ꎻ Yunnan Prov.ꎬ Yanshan Countyꎬ W. T. Wang in Acta Bot. Yunnan. 7(1): 62. 1985. &
Teng ̄Lung ̄Shanꎬ rocky slope on rock creviceꎬ at Fl. Reip. Pop. Sin. 69: 319. 1990ꎻ W. T. Wang et al. in
elevation about 1 300 m a. s. l.ꎬ 20 September 1939ꎬ Z. Y. Wu & Ravenꎬ Fl. China 18: 308. 1998.
C. W. Wang 83605 ( PE)ꎻ Yunnan Prov.ꎬ Yanshan Fig. 2
Countyꎬ Shui ̄to u ̄dzaiꎬ in wooded valley on rock Lithophytic rhizomatous perennial herbsꎻ rhizome
creviceꎬ 16 October 1939ꎬ C. W. Wang 84427 ( PE)ꎻ very shortꎬ covered by fasciculate stout roots. Leaves all
Yunnan Prov.ꎬ Yanshan Countyꎬ shin ̄tarngꎬ border of basalꎬ petiolateꎻ petiole (0.5)1-3(4) cm longꎬ ca. 2
woods on rock creviceꎬ 18 October 1939ꎬ C. W. Wang mm in diameterꎬ densely brownish to argenteous white
84475 (IBSC). appressed pubescentꎻ leaf blade elliptic to obliquely
Ecology: Petrocosmea martinii are found in shady ellipticꎬ ovateꎬ narrowly ovate and obovateꎬ (1.2)2-
cliffs of limestone mountains at elevation range of 6.5 × (0.8) 1.5 - 2.5( - 4.5) cmꎬ brownish white to
1 000-1 500 m a. s. l.ꎬ under primary evergreen broad ̄ argenteous white appressed puberulent and pubescent on
leaved and coniferous humid forest and usually both surfaceꎬ base broadly cuneateꎬ cuneate to nearly
accompanied with mossesꎬ Begonia cavaleriei H. roundedꎬ margin nearly entire to repand ̄crenateꎬ apex
Léveilléꎬ Elatostemma sp.ꎬ Ficus pumila L.ꎬ Carex sp.ꎬ broadly acuteꎻ lateral veins 3-4 on each sideꎬ abaxially
Cyrtomium sp.ꎬ Cyrtogonellum sp. and Pteris sp. conspicuous. Cymes 1 (or 3) ̄floweredꎻ peduncle (2)
Phenology: Flowering in April. 3.5 - 5. 5 ( 8) cm longꎬ densely brownish yellow to
Distribution: China (Guizhouꎬ Yunnanꎬ Guangxi)ꎬ reddish brown appressed puberulentꎻ bracts linearꎬ 2-6
and new record to VIETNAM (Hà Giang Prov.ꎬ Qu an Ba mm longꎻ pedicel ( 4 ) 8 - 12 mm long. Calyx
distr.ꎬ Thanh Vân and Tùng Vài comm). actinomorphicꎬ 5 ̄sect from baseꎻ segments equalꎬ
Conservation: In Vietnamꎬ so farꎬ two fragmented linearꎬ 4 - 6 × ca. 1 mmꎬ outside densely brownish
small populations of this species discovered in Qu an B a yellow to reddish brown or ferruginous appressed
districtꎻ a single population with less than 100 individuals puberulentꎬ inside glabrous. Corolla purplish ̄blueꎬ
located in Thanh Vân commune is around 15 km northeast outside sparsely puberulentꎬ inside glabrousꎻ tube 3-5
direction from the biggest population of Tùng Vài mm longꎻ adaxial lip 4 - 5 mm longꎬ indistinctly 2 ̄
commune. The Tùng Vài population consists of three lobedꎬ two lobes are fused nearly their 2/ 3 length and
subpopulationsꎬ each has a maximum of 500 individuals each lobe is folded and rolled laterally to form a
and are isolated from each other by valleys in which local carinateplicate shape of the adaxial lip that encloses the
people cultivate black Cardamom. P. martinii in different styleꎬ lobes triangular ̄ovateꎻ abaxial lip (8)8.5-9.5 mm
populations grow on humid and shady cliffs of limestone longꎬ distinctly 3 ̄lobedꎻ lobes broadly ovate to rotundꎬ
mountainsꎬ but scatters in some small groups and each 3.5-4.0 mm longꎬ apex obtuse to rounded. Stamens 2ꎬ
group consisting of 10-50 individuals. This kind of habitat adnate to the corolla tube at the baseꎻ filaments broadly