Page 28 - 《广西植物》2020年第10期
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10 期 TRAN Thi Phuong Anh 等: 越南苦苣苔科石蝴蝶属植物随记暨国家级分布新记录 1 4 1 1
(1911ꎬ p. 329)ꎬ which have not been reported for flora glabrousꎻ tube 3 - 5 mm longꎻ adaxial lip ca. 3 mm
of Vietnam. According to Wang (1985)ꎬ five species of longꎬ indistinctly 2 ̄lobedꎬ two lobes are fused nearly
Petrocosmea in Vietnam should be divided in two their 2/ 3 length and each lobe is folded and rolled
sectionsꎻ sect. Petrocosmea has single speciesꎬ P. laterally to form a carinateplicate shape of the adaxial
condorensisꎬ and sect. Anisochilus consists of four lip that encloses the styleꎻ abaxial lip (8)9-11(12) ×
speciesꎻ P. duclouxiiꎬ P. minorꎬ P. martinii and P. (10)11-14(15) mmꎬ 3 ̄lobed to nearly middleꎻ lobe
sericea. broadly ovate to nearly orbicularꎬ 5.5-6.5 × 7.5-9.5
mmꎬ apex obtuse to nearly rounded. Stamens 2ꎬ adnate
2 Results and Analysis to the corolla tube at the baseꎻ filaments 2-3 mm longꎬ
geniculate near the topꎬ glabrousꎻ anthers coherentꎬ
2.1. Description and information of two new records adnate face to faceꎬ oblongꎬ poricidal in apexꎬ ca. 2
of Petrocosmea in Vietnam mm longꎻ staminodes 2ꎬ adnate to the corolla tube at
Petrocosmea martinii (H. Léveillé) H. Léveillé the baseꎬ glabrous. Pistil (6)7-9(10) mm longꎻ ovary
in Repert. Spec. Nov. Regni Veg. 9: 329. 1911ꎻ Craib 1.5 - 2 mm longꎬ puberulentꎻ style 6 - 8 mm longꎬ
in Notes Roy. Bot. Gard. Edinb. 11: 275. 1919ꎻ glabrous. Capsule grey brownꎬ 3.5-5(-7) mm long.
Lauener & Burtt in l. c. 38(3): 427. 1980: H. W. Li in Examined specimens: VIETNAMꎬ Hà Giang
Bull. Bot. Res. 3(2): 20. 1981ꎻ W. T. Wang in Acta Prov.ꎬ Qu an B a distr.ꎬ BátDai Son N. R.ꎬ Thanh Vân
Bot. Yunnan. 7(1): 61. 1985 & Fl. Reip. Pop. Sin. 69: Comm.ꎬ Tãn vill.ꎬ Thông (Conifer) Mountainꎬ karsticꎬ
318. 1990ꎻ W. T. Wang et al. in Z. Y. Wu & Ravenꎬ highly eroded mountains composed of solid marble ̄like
Fl. China 18: 307. 1998 — Vaniotia martinii H. limestoneꎬ primary evergreen broad ̄leaved and
Léveillé in Bull. Acad. Int. Géogr. Bot. 12(161-162): coniferous [Pseudotsuga sinensis Dodeꎬ Taxus chinenis
166. 1903. — P. cavaleriei Léveillé in Repert. Rehderꎬ Amentotaxus argotaenia ( Hance ) Pilger ]
Spec. Nov. 9: 329. 1911ꎬ p. p. quoad Cavalerie 837. humid forest on steep rocky slopes near mountain topsꎬ
Fig. 1 around point 23°07′40″ Nꎬ 104°57′11″ Eꎬ at elevation
Lithophytic rhizomatous perennial herbsꎻ rhizome 1 000- 1 195 m a. s. l. Lithophytic herb on vertical
shortꎬ 3 - 5 mm longꎬ densely covered by long brown mossy shady cliffꎬ flowers bluish purpleꎬ not commonꎬ
hairs. Leaves all basalꎬ petiolateꎻ petiole (1. 5) 2 - 3 19 April 2018ꎬ L. Averyanovꎬ Nguyen S. K.ꎬ Chuong
(4.5) cm longꎬ piloseꎻ leaf blade ovate to orbicular ̄ Q. N.ꎬ T. Maisakꎬ VR 494 (LEꎬ HN])ꎻ Quan B a
ovateꎬ 0.6-2(2.6) × 0.5-1.9(2) cmꎬ adaxially pale distr.ꎬ Tùng Vài comm.ꎬ Thng vill.ꎬ Limestone primary
greenꎬ abaxially greenish purple to purple and dark broad ̄leaved evergreen closed forestꎬ around point
purple along veinsꎬ both surface densely piloseꎬ base 23°03′47″ Nꎬ 104°50′35″ Eꎬ at elevation 1 300-1 500
usually cordateꎬ rarely roundedꎬ margin crenulate to m a.s.l. Herb on vertical mossy shady cliffꎬ flowers bluis
nearly crenateꎬ denticulate to nearly entireꎬ apex purpleꎬ rareꎬ 12 April 2014ꎬ Nguyen Q. H.ꎬ Nguyen
rounded to obtuseꎻ lateral veins 3 - 4 each sideꎬ S. K.ꎬ Nguyen T. V.ꎬ Tu B. N.ꎬ Nong V. T.ꎬ Chuong
adaxially slightly flatꎬ inconspicuousꎬ abaxially raisedꎬ Q. N.ꎬ CPC 4993 [ Center for Plant Conservation
conspicuous. Cymes 1(or 2) ̄floweredꎻ peduncle (1.5) (CPC) hebariumꎬ Hanoi]ꎻ Tùng Vài comm.ꎬ Thng
3-4(5) cm longꎬ piloseꎻ bracts 2ꎬ linearꎬ 1 - 2 mm Vill.ꎬ primary evergreen broad ̄leaved very humid
longꎬ sometime absentꎻ pedicel (5)7-15(19) mm long forestꎬ steep slopes of stream valley composed with
when two ̄flowered. Calyx actinomorphicꎬ 5 ̄sect from eroded stratified highly eroded limestoneꎬ around point
baseꎻ segments equalꎬ narrowly lanceolateꎬ 2.5-3.8 × 23°03′13″ Nꎬ 104°51′48″ Eꎬ at elevation 1 050-1 150
0. 8 - 1. 5 mmꎬ outside puberulent to piloseꎬ inside m a. s. l. Rosulate herb on vertical shady mossy cliffꎬ
glabrous. Corolla bluish purple to reddish purpleꎬ inside flowers blueꎬ rareꎬ 21 April 2018ꎬ L. Averyanovꎬ Nguyen
with two white patches at base of adaxial lip and dark S. K.ꎬ Nguyen T. H.ꎬ Nguyen Q. H.ꎬ Chuong Q. N.ꎬ
purple patch at tube baseꎻ outside puberulentꎬ inside T. Maisak & Le N. D.ꎬ VR 561 (LEꎬ HN)ꎻ around point