THE GREWIAS OP ROXBURGH 361 



tita " (Roxb. ined.), which is really = G. caiyinifolia Mast, in 

 Hook. fil. Fl. Br. Ind. i. 387, non Juss., also in part his " pilosa'' 

 (non Lamarck) in the same, i. 338, and is properly = G. flave- 

 scens Juss. 



In the Flora of Tropical Africa, G. flavescens Juss. comes 

 partly under " G. inlosa " (Masters non Lamarck), partly under 

 " carpinifolia Juss." 



Roxburgh's " salvifolia" was of course quite different from that 

 of the younger Linne, which was not any Grewia, but, as 

 Roxburgh was aware, an Alangiiim. In Bengal Plants, No. 

 234, " G. salvicsfolia Heyne," refers manifestly, from the charac- 

 ters, to G. Bothii DC, but the localities suggest that it was 

 intended to include also G. helicterifolia Wall, (ex Royle), 

 G. polygama Roxb., and perhaps G. Damine Gaertn., the 

 last being, as already explained, the true salvifolia of Heyne 

 ex Roth, which the writer looks on as distinct from Bothii DC, 

 although forms occur that seem almost to connect them. G. l^oly- 

 gama is quite distinct from G. Damine, and more markedly still 

 from G. Bothii ; it is less easy to mark it off from G. helicteri- 

 folia. The distinctive characters can be left for the present, but 

 the geographical distribution of the two groups may be noted as 

 follows : — 



BiCOLORES. 



(ft) G. bicolor Juss. In the drier parts of western and central 

 tropical Africa from Senegal to the Upper Nile basin : a tree. 

 Perhaps also (very locally) in South-western India. 



The forms ranked as varieties under this species in Burret's 

 monograph from East Africa and Abyssinia are regarded by the 

 writer as distinct species. 



(b) G. Bothii DC. (Synon. G. salvifolia Roxb. Fl. Ind. ii. 

 587, non Linn, fil., nee Heyne ex Roth; G. excelsa Masters, pro 

 pte., non Vahl.) 



Drier parts of tropical and subtropical Southern and Central 

 India from the Carnatic tableland to the North-western Vindhyas: 

 a tree. 



(c) G. Damine Gaertn. (Synon. G. salvifolia Heyne ex Roth, 

 non Linn, fil., nee Roxb. ; sed (descr. emend.) Mast, in Fl. Br. 

 Ind. i. 386.) 



Ceylon. Dry tropical and subtropical Western India from 

 Madras to the Indus basin : a small tree, reduced in the north to 

 a stunted bush on limestone hills at 1500-4000 ft. above sea-level. 

 There are very near but apparently distinct forms from the 

 extreme south of tropical Africa. 



Hirsute. 



(fZ) G. helicterifolia Wall, (ex Royle, 111. 104, sphalmate 

 ''helicterifolia"). 



Savannahs and low hills in extra-tropical North India from the 

 Rajmahals to the Indus basin : a twiggy, subdioecious shrub, 

 sending out fresh shoots annually or periodically. 



(c) G. j^olygama Roxb. non Pierre in Flor. Forest, pi. 166 and 



