14 BOTANY OF SOCOTRA. 



2. C. longifolia, DC. Prod, i. 244 ; Oliv. Flor. Trop. Afr. i. 90 j T. 

 Anders, in Journ. Linn. Soc. v. (I860), Suppl. 4 ; Ach. Rich. Tent. Flor. 

 Abyss. I. 26, t. 5. 



Socotra. Not common on the plains. B.C.S. n. 679. 

 Distrib. Somali Land, Abyssinia, shores of the Bed Sea. Common at 

 Aden, 



5. CAPPARIS. 



Capparis, Linn. Gen. n. 643 ; Benth. et Hook. Gen. PI. i. 108. 



A large genus of trees or shrubs, often spiny, of tropical and warm regions 

 in both old and new world, but absent from North America. 



1. C. aphylla, Roth. Nov. PI. Sp. 238; DC. Prod. i. 246; Oliv. Flor. 

 Trop. Afr. i. 95 ; Hook. fil. and Thorns, in Hook. Flor. Brit. Ind. i. 174 ; 

 Brandis For. Flor. t. iii. 



C. Sodada, E. Br. in Denh. and Clapp. App. 20 ; Boiss. Flor. Orient, i. 419. 

 Sodada decidua, Forsk. Fl. ^Egypt. Arab. 81 ; Del. Fl. Mgypt. 74, t. 26, f. 2. 



Socotra. A characteristic plant of the dry limestone plains at the east 

 and west ends of the island. B.C.S. n. 678. 



Distrib. Through Nile Land and north tropical Africa, and from Arabia to 

 north-west India. 



2. C. spinosa, Linn. Sp. 720 ; DC. Prod. i. 245 ; Boiss. Flor. Orient, 

 i. 420 ; Oliv. Flor. Trop. Afr. i. 95 ; Hook. fil. and Thorns, in Hook. Flor. Brit. 

 Ind. i. 173. 



Socotra. On the plains, common. B.C.S. n. 192. Schweinf. n. 751. 



Distrib. Of wide distribution in the dry regions of the tropics. 



The plant occurs in both spiny and unarmed states on Socotra. For a dis- 

 cussion of the synonymy of this protean species, see Hooker and Thomson 

 (loc. cit.) and T. Anderson (in Linn. Soc. Journ. v. (1860), Suppl. 5). The 

 Socotran plant is the true C. spinosa, Linn. 



Order V. RESEDACE^]. 



A small family of six genera, reaching a maximum in the regions about the 

 Mediterranean, and in south-west Asia. A few representatives extend to 

 India and south Africa. 



