Plate 2451. 



PLATYKELEBA INSIGIHS, K E. Br. 



AsCLEPiADE.^. Tribe Cyxancuk.e. 



Platykeleba, if. E. Br. in Kew Bulletin, 1895, 250. Ca/yx brevis, 



5-partitus. CorollceMxahus late rotato-canipanulatus, breviterangulato- 

 iobatus. Corona duplex; exterior carnosula, breviter cupularis, basi 

 corolIa3 inserta, marglne late deltoideo-lobata, lobis medio gynostegii 

 adnatis ; corona interior 5-lobata, lobis ovatis rotundatisve obtusis 

 gynostegio paullo brevioribus leviter concavis v. mox fere planis cum 

 coronoe exterioris lobis continuis. Stamina prope basin corollae affixa; 

 antherse breves, apice membrana inflexa appendlculataj ; pollinia in 

 quoque loculo solitaria, oblonga, pendula. ^%ma breviter rostratum.— 

 Fruticulus apliyllus^ ramis Jloriferis ereciisy simplicibus v. parce rainonh 

 gracilihus glabris, cortice carnosulo. Umbellse paucifiorcR, ad nodes 

 sessiles. Flores majusculi^ purpureo-venosL 



P. insignis, N, E. Br. Lc. (sj). iinica). 



Hab. Central Madagascar, Baron (No. 973). 



Pedicelli 



Rami in spp. exslccatis circa 1 liii. diarii., 8-12 poll, longi. Pei 

 2"3 lin. longi, Calyeis setjmenta ovata, obtusiuscula. Corolla 



^2 ^iiii. luiigi, %^aiyc 



6-8 lin. diam. 



circa 



The flowers of this interesting plant are very similar to those of 

 Oxystelma; in our specimens they are all expanded, but would appear 

 as though in jestivation the corolla were either very narrowly imbricate 

 or valvate. The corolla is prettily pencilled with radiating purple 

 hues.— D. Oliver. 



.^ig. 1. Flower from M-hich the corolla has been removed. 2, Sepal seen fnjm 

 ^ithm with basal glands. 3. Anther, dorsal view, coronal lobe removed. 4. Antner 

 seen from within. All enlarged. 



SERIES IV. VOL, v. PAKT HI 



L 



