2<>4 BOTANY OF SOCOTRA. 



THESIDIUM. 

 TheMdiwm, Sond. in Flora 1857, 364 ; Benth. et Hook. Gen. PL iii. 222. 

 A small south African genus. 



Thesidium sp.? 



Suffrutex nanus lignosus cortice griseo intricato- et breviter ramosus raniis terminalibus albidis 

 subnitidis puberulis. Folia sessilia crassa minuta sub £ poll, longa ad ramulos laterales 

 contractos imbricata deltoidea cordata arnplexicaulia canescentia antice concava postice 

 convexa carinata margine subniembranacea. Mores $? solitarii sessiles ad extremitates 

 ramulorum contractorum lageniformi £ poll, longi. Perianthium 5-lobatum, lobis connatis 

 apice obtusis inflexis conniventibus extus canescentibus. Staminodia 5 basi connata apice 

 membranacea linearia. Ovarium?, subclavatum 5-alatum staminodiis cequilongum. Ca^t. 

 ignot. 



Soeotra. On Kadhab plain. B.C.S. n. 359. 



A small woody undershrub we have doubtfully referred to this San- 

 talaceous genus. Its habit is quite that of other species in the genus, but 

 unfortunately the two or three flowers on our specimens have been attacked by 

 a grub, and the internal structure is undeterminable, so that it is not possible 

 to give an accurate diagnosis, and to fix its position clearly. The plant is a very 

 characteristic plain form. 



Order LXIX. EUPHORBIACE^. 



A vast order represented in all parts of the globe. Twelve genera have 

 representatives in Soeotra, and of them, eight are found more or less all over the 

 world, though two attain a maximum in America. Three are more peculiarly 

 old world types of some range, whilst one is a small tropical African genus. 



1. EUPHORBIA. 



Euphorbia, Linn. Gen. n. 609 ; Benth. et Hook. Gen. PI. iii. 258. 



A vast genus having representatives in all parts of the globe. Ten species 

 occur in Soeotra. Of these, one is a Mediterranean and north African species, 

 two are north-east African and south-west Asiatic, and seven are endemic. 



1. E. (Anisophyllum) indica, Lamk. Encyc ii. 423 ; Boiss. in DC. Prod. xv. 

 2, 22, and Flor. Orient, iv. 1086. 



A', (egyptiaca, Boiss. Cent. Euph. 13, and in DC. Prod. xv. 2, 35, and Flor. Orient, iv. 1088 ; T. 



Anders, in Journ. Linn. Soc. v. (1860), Suppl. 34. 

 E. hyjpericifolia, Acb. Rich. Tent. Flor. Abyss, ii. 243 (non. Linn.). 



Soeotra. Near Tamarida and Galonsir. Common. B.C.S. n. 042. 

 Schweinf. n. 300. 



Distiub. From Cape de Verde islands through tropical Africa and south- 

 west Asia to northern India. 



