PHANEROGAMS— PROFESSOR BAYLEY" BALFOUR. 37 



1. GREWIA. 



Grewia, Linn. Gen. n. 1026 ; Bentli. et Hook. Gen. PL i. 233. 



A considerable genus of herbs and trees widely spread in the warmer 

 regions of the old world. Of the five species found in Socotra, two are 

 endemic, and of the others, two are tropical African, south-west Asiatic, and 

 Indian species, one of them reaching Mauritius ; the fifth is entirely Indian. 



1. G. populifolia, Vahl Symb. i. 33; DC. Prod. i. 511; T. Anders, in 

 Journ. Linn. Soc. v. (1860), Suppl. 10 ; Boiss. Flor. Orient, i. 843 ; Mast, in 

 Oliv. Flor. Trop. Afr. i. 246, and in Hook. Flor. Brit. Ind. i. 385. 



G. hetulifolia, Juss. in Ann. Mus. iv. (1804), 92, t. 50, f. 1. 



Socotra. Not common. B.C.S. n. 97. Schweinf. n. 447 in lit. 



Distrib. Tropical Africa and through Arabia to Afghanistan and India ; 

 also Mauritius. 



Like so many plants from similar habitats, it varies very greatly in its 

 foliage. The form from Socotra is a small-leaved one with clustered branches. 



2. G. orbiculata, Rottl. in Nov. Act. Nat. Cur. Berol. 1803, 205, ex Mast, 

 in Hook. Flor. Brit. Ind. i. 386. 



G. rotundifolia, Juss. in Ann. Mus. iv. (1804), 92, t. 50, f. 3 ; DC. Prod. i. 511 ; Wight Ic. t, 45. 



Socotra. On the hill slopes. B.C.S. n. 680. 



Distrib. Indian peninsula and perhaps Ceylon. 



We obtained a plant in foliage-leaf only which we refer tp this species. 



3. G. salvifolia, Heyne in Roth. Nov. Spec. 23 9;; DC. Prod. i. 509; 

 Mast, in Oliv. Flor. Trop. Afr. i. 247, and in Hook. Flor. Brit. Ind. i. 386, 



G. bicolor, Juss. in Ann. Mus. iv. (1804), 92, t. 50, f. 2 ; Boiss. Flor. Orient, i. 844. 

 Socotra. Not frequent on the hill slopes. B.C.S. n. 590. 

 Distrib. Tropical Africa and north-west and western India. 

 We obtained this variable plant in leaf only. 



4. G. turbinata, Balf. fil. in Proc. Roy. Soc. Edin.. xi. (1882), 504. 



Arborea ; foliis longe petiolatis ovato-lanceolatis basi obliquis serratis subtus incanis; cyrnis 

 trifloris oppositifoliis ; drupis turbinatis glabrescentibus nitidis, pyrenis 1-pluri-locularibus. 



Arbor circa 25-pedalis. Hamuli incani. Folia longe petiolata ovato-lanceolata basi 5-nervia 

 serrata subtus incano-pubescentia 4-5 poll, longa 1— 1|- poll, lata ; petiolus f poll, longus 

 pubescens sub lamina dilatatus. Stipidce subulata?. Cym.ce triflorse v. abortu uniflorse 

 oppositifoliae, pedunculis incanis petiolo brevioribus. Mores ignoti. Drupce nonlobatae 

 turbinata^ t 7 G poll, longae in parte suprema ^ poll, latee 4-pyrenae aureae levse pilis paucis 

 adpressis vestitae demum glabrae nitidaeque ; pyrenae l-pluri-loculara3, loculis superpositis 

 nionospermis. 



Nom. Vern. Eireit (B.C.S.). Ereik (Schweinf.), 

 Socotra. Amidst boulders at the sides of Keregnigiti, B.C.S,. n, 373. 



Schweinf. n. 475. 



