PHANEROGAMS— PROFESSOR BAYLEY BALFOUR. 259 



Socotra. B.C.S. n. 648. 



Distrib. Tropics of both old and new world. 



2. P. (Persicaria) barbatum, Linn. Sp. 518 ; Meisn. Monog. Polyg. 80, 

 and in DC. Prod. xiv. 104 ; Ach. Rich. Tent, Flor. Abyss, ii. 226. 



Socotra. B.C.S. n. 628. 



Distrib. Tropics of Africa and Asia and in Australia. 

 The Socotran specimens are not so hairy on the back of the stipules as is 

 typical. 



Order LXIV. ARISTOLOCHIACE^E. 



A small order widely-dispersed in temperate and warmer regions especially 

 of the northern hemisphere. 



ARISTOLOCHIA. 



Aristolochia, Linn. Gen. n. 1022; Benth. et Hook. Gen. PI. iii. 123. 



The largest genus of the order and with its distribution. 



Aristolochia sp. 



Socotra. On cliffs south-west from Galonsir. B.C.S. n. 641. 



There is a small fragment of an Aristolochia in our collection but not 

 sufficient for identification or description. I saw only one straggling plant in 

 the locality mentioned from which I pulled the only twig bearing leaves and 

 two flowers visible. I looked carefully in other places but never found the 

 plant again. 



Order LXV. PIPERACE.E.* 



A large order widely-spread over both old and new worlds, most abundant 



in warmer regions. 



PEPEROMIA. 



Peperomia, Ruiz et Pav. Flor. Per. et Chil. 1. 29, t. 44 ad 52 ; Benth. et Hook. Gen. H. iii. 

 132. 



A considerable genus of the warmer regions of the globe, attaining a 

 maximum development in America. There are three forms in Socotra. One 

 is the Himalayan and Ceylon type of a widely-spread plant ; another is found 

 in Arabia, Madagascar, and the Cape, and the third is apparently a Bourbon 

 species. 



P. arabica, Dene, in Miq. Syst. Piper. 121, and in Miq. Illustr. 18, t. 12; 

 Gas. DC. in DC. Prod. xvi. i. 442. 



* I am indebted to M. Casimir de Candolle for the identification of t T ie thirl specie"; here mentioned. 



