87. ASCLEPIADEE: CYNANCHER. 111 
Pergularia japonica, Thunb. Fl. Jap. p. 111. 
Metaplexis rostrata, Turcz. in Bull. Soc. Nat. Mosc. xxi. l, p. 253; 
Walp. Ann. iii. p. 49. 
Cunit: near Peking (Staunton! Bretschneider !), Jehol, in 
the midst of the mountains (David, 2019 !); SurvakiNo : Moukden 
(Webster ) ; SuawarUNG: Chefoo (ex Debeaux); KrANGSU: 
Shanghai (Faber! Maingay!); FokIEN: Amoy (Fortune, 87 !) ; 
Corra (ex Maximowicz!). Mus. Brit. ; Herb. Kew. 
Japan and Mandshuria. 
Henrya, Hemsl. (Cynanchearum genus novum.) 
Calyx minutus, herbaceus, alte 5-fidus, intus eglandulosus, 
lobis ovatis obtusis. Corolla subrotata, alte 5-fida, lobis ovali- 
rotundatis longitudinaliter venosis, dextrorsum obtegentibus. 
Corona nulla. Stamina basi corolle affixa, filamentis in tubum 
brevissimum connatis. Pollinia minutissima in quoque loculo 
solitaria, oblique descendentia. Stigma vertice umbonatum. 
Folliculi iznoti.— Frutex (vel herba) volubilis gracillimus, undique 
glaberrimus, foliis oppositis membranaceis, floribus parvis laxe 
cymoso-paniculatis. 
ww? 1. Henrya Augustiniana, Hemsl., n. sp. 
Folia breviter petiola:a, cordato-ovata vel cordato-lanceolata, 
cum petiolo usque ad 5 poll. longa, acutissima, subtus pallidiora, 
| venis lateralibus primariis utrinque 4-5 inter se anastomosantibus. 
Flores lutei (Henry), circiter 3 lineas diametro, in cymas laxas 
dichotomo-ramosas axillares dispositi, cymarum ramulis gracil- 
limis, pedicellis capillaribus. 
Hurrun: Ichang and iumediate neighbourhood (4. Henry, 
4252!). Herb. Kew. 
This genus is named after the discoverer, Dr. Augustine Henry ; 
and it may also serve to commemorate the Rev. B. C. Henry, a 
friend and correspondent of the late Dr. Hance, and a collector 
of plants who has discovered many novelties in the south of 
China. In habit and inflorescence this plant resembles some of 
the slender small-flowered species of Tylophora, such as 7. exilis, 
Colebr., having a loosely branched inflorescence, but the minute 
pollinia are of the pendulous type, and this, connected with 
absence of a corona, seems sufficiently distinctive to justify the 
foundation of a new genus—that is to say, as the genera are 
