PHANEROGAMS — PROFESSOR BAYLEY BALFOUR. 115 



valvos duos septicide fissens, carpello quoque verticaliter dehiscentc, apice carpellorum 

 ultra calyceni non protruso. Semina oo nigra puncbulata. 



Soeotra. Common on the hill slopes. B.C.S. n. 313. Schweinf. n. 

 633. 



Distrib. Endemic. 



A pretty little herb and quite distinct as a species. Its nearest ally is H. 

 Wallichii, Kurz. (in Journ. Asiat. Soc. xlv. (1876), ii. 136; Hook. fil. Flor. Brit. 

 Ind. iii. 53), a plant of Tenasserim and the Nicobar islands, extending to 

 Borneo. But ours is a more delicate plant, with different flowers and fruit. 

 Hooker (loc. cit.) remarks of the Indian plant : — " possibly an Oldenlandia, but 

 the capsules dehisce septicidally to the base." Our plant farther differs from 

 Oldenlandia in the apex of the style, which is simple and capitate, not bifid. 



Schweinfurth's specimens, collected near Kischen, generally differ from ours 

 in being more scabrous and with the calyx lobes rounded and more strigose. 



4. OLDENLANDIA. 



Oldenlandia, Linn. Gen. n. 154 ; Benth. et Hook. Gen. PL ii. 58. 



A large genus of tropical and subtropical regions of the world. Of the 

 three Socotran species one is cosmopolitan in the tropics, one is a common 

 Asiatic species, and the third belongs to the regions of north-east Africa and 

 south-west Europe. 



1. O. Schimperi, T. Anders in Journ. Linn. Soc. v. (1860), Suppl. 21 ; 

 Boiss. Flor. Orient, iii. 11 ; Hiern in Oliv. Flor. Trop. Afr. iii. 55. Hiern gives 

 the extensive synonymy of the species. 



Soeotra. On the plains. B.C.S. n. 59. Schweinf. n. 548. 



Distrib. Nile Land and Egypt, Arabia and Scinclh. 



The Socotran plant varies much. Many specimens are quite typical in their 

 dull scabrid character, but many are quite glabrous and shining, and this 

 especially in the case of old plants. In no instance do we find our plants 

 showing the narrowly elliptic subobtuse form of corolla-lobe described in the 

 type ; the form is usually narrow linear-acute, and the lobes are relatively longer 

 than is typical. 



2. O. COrymbosa, Linn. Sp. 174 ; DC. Prod. iv. 426 ; Hiern in Oliv. Flor. 

 Trop. Afr. iii. 62 ; Hook. fil. Flor. Brit. Ind. iii. 64. An extensive synonymy is 

 given by authors quoted. 



Soeotra. Common. B.C.S. n. 582. Schweinf. nn. 323, 683, 702. 

 Distrib. Common tropical weed. 



3. O. Heynei, Oliv. in Trans. Linn. Soc. xxix. (1875), 84 ; Hiern in Oliv. 

 Flor. Trop. Afr. iii. 59 ; Hook. fil. Flor. Brit. Ind. iii. 65. 



