1894.] t). Prain — Some additional species of Convolvulacese. 83 



Novicise Indicas VIII. Some additional species of Coiivolvulaceae. — 

 By D. Prain. 



[Received Mar. 31st ; — Read Ajjiil 4th.] 



It is now nearly eleven years since the account of the Indian species 

 of this oi'der by Mr. C. B. Clarke, was published (Flora of British India, 

 iv., pp. 179-228: June 1893). In this interval, some forms new to the 

 area dealt with in the Flora, including a few that appear to be new to 

 science, have been reported from various localities, chiefly, however, 

 fi'om British Indo-China, and from Malaya. 



Having been directed by Dr. King to re-arrange the Indian mate- 

 rial of the order preserved in the Calcutta Herbarium, in such a manner 

 as to incorporate the new material as nearly as possible on the lines of 

 Mr. Clarke's account, the writer, while doing so, has drawn up, as he 

 did in the case of the Lahiatce, descriptions of all the species, whether 

 new to science or not, that are new to the Indian ai'ea, with a view to 

 their presentation to the Society, in the hoj)e that they may prove use- 

 ful to members who require to use the Flora of British India in the field. 

 As on former occasions, the descriptions have been made as nearly as 

 possible in the style of those of the Flora. 



Of the majority of the forms which have been previously de- 

 scribed, bat which are now for the first time reported as Indian, and of 

 all the forms that are now being described, as the writer believes, for 

 the first time, examples have been sent by Dr. King, Superintendent of 

 the Royal Botanic Garden, to Mr. Dyer, Director of the Royal Gardens, 

 Kew, for favour of comparison with the Indian material in the great 

 national Herbarium there. In this way it has been made certain that 

 none of the species now described as new exist under older names in 

 the two Herbaria of Kew and Calcutta, which are the most richly endowed 

 with Indian specimens. 



The writer would wish to convey his thanks to Mr. Dyer, the 

 Director, and to Dv. Stapf, the Assistant for India at Kew, who made 

 the necessary comparisons, for their kindness in affording him the 

 assiu-ance required to render the validity of these species probable. 



1. ERYCIBE RoxB. 



16. Erycibe PEC4UENSIS Prain. Erycibe paniculata Boxh. var. peg- 

 uensis : Clarice, Flor. Brit. Ind., iv, 180. E. glaucescens Kxirz, For. Flor. 

 Brit. Burma, ii, 214 in part, not of Wall. 



Besides the points alluded to by Mr. Clarke, this plant is distin^ 

 guished from E. panicidata Roxb., by the much larger fruit and by the 

 margin of the corolla, which is white, not yellow, being undulate 

 only, not finely crenulate. 



