Luisia appressifolia

Luisia appressifolia Aver., Lindleyana 15(2): 79 (2000) (2000).

Luisia appressifolia Aver., Photo by  Chu Xuan Canh

its native range is China (S. Yunnan) to Vietnam.

Latin Name: 

Luisia appressifolia Aver.

Family: 

Orchidaceae Juss.

Synonym:

No synonyms are recorded for this name.

Vietnamese  name:

Lan san hô, Lan cành giao..

English Name:

Description: 

Epiphytic herb，stem erect，usually branched， ca. 16 cm long，ca. 2.8 mm diameter，inter- nodes ca. 1.0 cm. Leave terete，clasped，5.6 - 7.7 cm × 2.1 - 2.4 mm，acute. Inflorescences borne from basal part of stem，green yellow with dense spots，ca. 5 mm length，1-flowered; floral bracts broadly ovate，green yellow on adaxial surface and red on abaxial surface，ca. 3 mm length. Flowers fleshy， sepals greenish yellow with purple stripes， especially on abaxial surface; petals golden yellow，tinged with purple stripe on middle of abaxial surface，lip golden yellow， with densely brown spots on adaxial surface，anther cap pale yellow; pedicle and ovary 8 - 10 mm. Dorsal sepal ovate-oblong，8.5 - 9.0 mm × 5.0 - 5.5 mm，obtuse; lateral sepals similar to dorsal sepal，but slightly longer and wider than dorsal sepal，acute，dorsally carinate- winged， becoming winged at apex. Petals ellipse，11.5 - 12.2 mm × 6.0 - 6.5 mm， obtuse; lip 10 - 15 mm，thickly fleshy，without distinct boundary between epichile and hypo- chile; hypochile slightly concave，base with sub- rectangular lateral lobes ca. 1.5 mm; epichile oblong，7.5 - 8.0 mm × 6.5 - 7.0 mm，adaxially with fleshy longitudinal ridge， emarginated at apex. Column ca. 3.0 mm， rostellum large，bilobed; pollinia globose，porate，ca. ( 2.0 × 1.0) mm; stripe ovate，ca. ( 1.8 × 1.2) mm; viscidium transversely oblong，large，ca. 2.0 mm wide; anther cap subglobose，ca. ( 2.5 × 2.7) mm，apex narrowed into beak. Flowering from A p r i l -M a y .

Distribution:

China South-Central, Vietnam (Đồng Văn, Quản Ba, Hà giang, Na Rì, Bắc Kạn).

Ecological:

Epiphytic on trunks at altitudes from 1450 to 1600 m in limestone forests in southeast Yunnan，China，which are mainly composed of Quercus marlipoensis ( Fagaceae)，Q. utilis ( Fa- gaceae) ，Platycarya strobilacea ( Juglandace- ae)，Manglie tiagrandis ( Magnoliaceae)，Erio- botrya japonica ( Rosaceae)，Podocarpus mac- rophyllus ( Podocarpaceae)，Bulbophyllum insul- sum ( Orchidaceae)，Paphiopedilum malipoense ( Orchidaceae )， and Habenaria fordii ( Orchi- daceae) .

Flowering times:

Blooms in late spring, early summer.

Flower size:

1.0 cm.

Cultivation:

Type Information

Collector Team:

P.K. Loc; P.H. Hoang; L. Averyanov CBL 1802

Locality:

Ha Giang Prov., Dong Van Distr., Ho Quang Phin Municipality, vicinities of Ta Xa village, 14-16km to SSW of Dong Van town, 23 16 N, 105 22 E, 1550-1600m

Collection Date:

28 Apr 1999

Type Herbaria:

holotype Herbarium, V. L. Komarov Botanical Institute

isotype Herbarium Jutlandicum, University of Aarhus

isotype HN

isotype Herbarium, Missouri Botanical Garden

isotype Museum national d'Histoire naturelle

Distribution Of Types:

Vietnam.

Reference: 

theplantlist.org

https://www.ipni.org/n/1015646-1

http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:1015646-1

Feng, Wu & Yong, Luo & Kumar, Pankaj & Liu, Qiang. (2019). Wu, X.F., Y. Luo, P. Kumar & Q. Liu. 2019. New record and additional notes on Luisia appressifolia (Orchidaceae) in China. Plant Science Journal 37 (1): 18–21.. 

https://thuocdongduoc.vn/chi-luisia-gaudich-1829