— 
ASCLEPIADACEAE. — CYNANCHUM | 845 
type ex Hemsley); Hsing-shan-Hsien, thickets, alt. 600-900 m., Sep- 
tember 1907 (No. 2250; climber 1.2-1.8 m., flowers white). 
In Henry's No. 2755 in the Gray Herbarium the inflorescences are very few flow- 
ered; otherwise there is no difference between this co-type and Wilson's specimens. 
I doubt if our plant belongs to Holostemma at all, the type of the genus being H. 
annularis K. Schumann (in Engler & Prantl, Nat. Pflanzenfam. IV. Abt. 2, 250, 
fig. 71 s-K [1895]. — Asclepias annularia Roxburgh, Fl. Ind. ed. 2, II. 37 [1832]). 
Roxburgh mentions as synonym “‘Ada-kodien Rheed. mal. 9, t. 7," which is also 
cited by R. Brown in describing his new genus. There is a plate in Wight, Icon. 
Ind. Orient. II. t. 597, under the name of Holostemma Rheedii Sprengel. 
CYNANCHUM L. 
Cynanchum decipiens Schneider, n. sp. 
Suffrutex scandens ad 1.2-1.8 m. altus; ramuli teretes, flavo- 
brunnescentes, unifariam puberuli, ceterum fere glabri, remote foliati. 
Folia membranacea, ovato-lanceolata, basi subauriculato-cordata, 
apicem versus sensim angustata, acuminatissima, utrinque sparse 
puberula, subtus paulo pallidiora, majora 5-8 cm. longa, ad basim 
2-4 cm. lata; petioli ad 2 cm. longi, superne sulcati, laxe puberuli, ad 
basim folioli glandulosi. Cymae umbelliformes, ad 25-florae, pedunculo 
puberulo 4-9.5 cm. longo suffultae; flores purpurascentes, aperti, 
circiter 7 mm. diametientes; pedicelli filiformes, plus minusve unifariam 
puberuli, basi bracteis parvis lineari-lanceolatis acutis puberulis in- 
structi, ad 18 mm. longi; calycis segmenta fere libera, lanceolata, 
acuta, intus glabra, extus sparse pilosa, margine ciliata, circiter 2 mm. 
longa, intus basi inter se squamulis circiter 3 (toti circiter 15) minimis 
instructa; corolla subrotata; lobi patentes (v. reflexi?), oblongi, sub- 
acuti, circiter 4 mm. longi, extus glabri, intus margine excepto 
albo-puberuli; corona gynostegio brevior, basin appendicis antherarum 
attingens, lobis 5 obtusis distinctioribus intus appendice ligulato-trian- 
gulato iis simili et paulo breviore medio ornatis, inter lobos iterum 
brevius lobulato-plicata; antherae rhomboideae; subquadratae, mar- 
ginibus cartilagineis, apice appendice hyalino albo subacuto in caput 
stigmatis paulo incurvo coronatae; pollinia pendentia, retinaculo paulo 
longiora, translatoribus versus pollinia dilatatis; stigma basi 5-angu- 
lum, convexum, obscure bilobum. Folliculi singuli (an semper?), 
oblongi, basi brevius et apicem versus longe attenuati, subglabri, 
ad 11 cm. longi et versus medium 1.2 cm. crassi, olivacei, purpuras- 
centi-striati; semina oblongo-spathulata, basi dilatata, rotundata, den- 
ticulata, versus apicem angustata, apice coma sericea fere 4-plo 
longiore coronata, circiter 7 mm. longa, plano-compressa. 
