NEW AND LITTLE-KNOWN MAD A GAS CAB PLANTS. 19 



axillaribus, brevissimis, paucifloris ; calyce subhemisphserico, 

 limbo minute 4-denticulato ; petalis triangularibus, longe acu- 

 minatis. 



Rami graciles, fuscescentes. Folia patula, rigidiuscula, supra 

 nitidula, 14-18 mm. longa, 9-12 mm. lata. Cymae 4-5 mm. 

 longse, ad nodos brevissime setulosae ; pedicelli vix 1 mm. longi. 

 Calyx atro-viridis, l|-2 mm. latus. Petala 2 mm. longa. An- 

 theraB rostratae, ecalcaratse, 1| mm. longae. Stylus capillaris, 

 demum 4-5 mm. longus. 



Alluvia] plains of Yaingaindrano, 2203 et 2252 ! 



CUCURBITACE.E. 

 (By Prof. A. Cogniaux.) 



Cucumis parvifolius, Cogn., sp. n. 



Annuus; caule procumbente, eirrhoso, setulis brevissimis sub- 

 reflexis dense vestito demum scabro ; foliis parvis, viridi-cinereis, 

 submembranaceis, utrinque longiuscule denseque setulosis, late 

 ovato-cordatis, subintegris vel leviter trilobatis, lobis late triangu- 



laribus, acutis, intermedio multo majore, sinubus rotundatis ; 

 pedunculo femineo brevi, satis gracili ; ovario ovoideo, brevius- 

 eule denseque hirsuto ; fructu late ovoideo, aculeis crassis brevibus 

 dense vestito, toto densissime breviterque setuloso. 



Caulis gracilis, brevis, subsimplex, sulcatus, cinereus. Petiolus 

 gracilis, striatus, breviter denseque hirsutus, 1-2^ cm. longus. 

 Folia 1£-2| cm. longa lataque, margine minute denticulata, basi 

 leviter emarginata, pedato-5-nervia. Cirrhi subfiliformes, breves, 

 sulcati, brevissime hirtelli. Flores masculi a nobis non visi. 

 Pedunculus femineus 2-4 nun. longus, densiuscule hispidus. 

 Fructus cinereus, 1^ cm. longus, 12 mm. crassus. Semina 

 pallida, obovato-oblonga, valde compressa, obscure marginata, 

 4tt-5 mm. longa, 2 mm. lata. — Aff. C. suhsericeo, Hook. f. ; 

 Cogn. in DC. Monogr. Pban. iii. 506. 



Amongst grass near Lake Itasy (Interior), 1947! 



Melotheia (§Eumelothria) Elliotiana, Cogn., sp. n. 



Monoica, glaberrima ; foliis ovato-cordatis subdeltoideis, in- 

 tegris, supra tenuissime denseque punctato-scabriusculis, subtus 

 glaberrimis ; cirrhis siraplicibus ; racemis masculis paucifloris, 

 petiolo paullo brevioribus ; calyce late campanulato ; antheris 

 subexsertis, glabris, non appendiculatis ; fructu gioboso ; seini- 

 nibus lrevibus tenuiter marginatis. 



c2 



