ASCLEPIADACEAE. — TYLOPHORA 351 
iterum sensim dilatatus, fauce fere 1 em. crassus; lobi 1.2-1.4 em. longi, 
&pice cohaerentes, e basi lata anguste elliptico-oblongi, medio circiter 
3 mm. lati, intus ad carinam sparse pilosuli, ceterum ut videtur glabri, 
margine ciliato; corona cyathiformis, foliolis fere ad medium connatis, 
in dentes anguste triangulares acutos apice incisos hirsuto-ciliatos ligulis 
interioribus oblongo-linearibus subobtusis glabris circiter 3-plo bre- 
viores productis; pollinia oblonga, apice uno apiculata, translatoribus 
ut videtur angustis brevibus; retinacula anguste oblongoidea, apice 
uno leviter dilatata. 
Western Szech'uan: Hsiao-chin Ho valley, near Monkong Ting, 
alt. 1900-2600 m., June 30, 1908 (No. 2313, type; climber 1-1.5 m., 
flowers dark). 
Our plant seems most closely related to C. sootepensis Craib (in Kew Bull. Misc. 
Inform. 1911, 420. — Costantin in Lecomte, Fl. Gén. Indo-Chine, IV. 152 [1912]) 
from Siam, Chiengmai, in open deciduous jungle on Doi Sootep, alt. 450 m., A. F. G. 
Kerr (No. 695, type ex Craib) as far as I can judge by the author's description. 
In the Siamese species the leaves are described as subsessile, and I can hardly 
believe that the plant from western Szech'uan can be identical with this southern 
Species. 
TYLOPHORA R. Br. 
Tylophora pseudotenerrima Costantin in Lecomte, Fl. Gén. Indo- 
Chine, IV. 108 (1912). 
Western Szech'uan: west of Kuan Hsien, Pan-lan-shan valley, 
alt. 2100-2900 m., June 1908 (No. 2244; climber 0.75-1.5 m. tall, 
flowers green). 
Our plant is very similar to Tylophora tenuissima Wight & Arnott according to 
the plate in Wight, Icon. II. t. 588, which differs in the dark color of the flowers 
and in its longer inflorescence, and is usually regarded as a form or even a synonym 
of T. tenuis Blume. Otherwise it agrees almost perfectly with Costantin's de- 
scription which was drawn from specimens from Indo-China, the type having been 
collected by Godefroy in * Cambodga: mt de Pursat.” The pollinia seem to be 
erect and included in the upper part of the anthers. 
Tylophora nana Schneider, n. sp. 
Frutex 10-30 cm. altus, aspectu Thesii; ramuli gracillimi, teretes, 
Striati, viridescentes, villoso-puberuli, basi glabrescentes, satis dense 
foliati. Folia lineari-lanceolata, margine revoluta, 1.2-2 cm. longa, 
1.5-3 mm. lata, utrinque acuta, superne obscure viridia, puberula, costa 
Impressa, subtus pallida, vix v. paulo pilosa, costa prominente, ceterum 
fere enervia; petioli 1-2 mm. longi, modo ramulorum puberuli. Cymae 
axillares, sessiles, pseudo-umbellatae, 4—7-florae; flores parvi, viridi- 
flavescentes, aperti circiter 8 mm. diametientes; pedicelli gracillimi, vix 
