Buforrestla.] cxLiii. commelixace.e Cclarke). 77 



I»ower Guinea. Princes Island, Mann! Lower Congo: Bingila, Dupuis ! 

 Angola: Cazongo; by streams in the Coffee region of Mount Muxaulo, TFelwifsch 

 6607 ! 



-B. i7iinor, K. Solium., differs by having the leaves with very few hairs or glabrate 

 except at the month of the sheaths. The lower axillary shoots sometimes perforate 

 the lL'ijf-!;heath, as in the type. 



Mozamb. Dist. German East Africa: Usambara ; Nguelo, near Xderema 

 (? Ngereiiiu), on the Handei Mountains, Hoist, 2280a. 



S. FORRESTIA, A. Rich.; Benth. et Hook. f. Gen. PL iii..850. 



Sepals 3, small, concave, hooded. Stamens 6 fertile ; filaments 

 with beaded hairs. Ovary P)-celled, with 2-1 ovules in each cell. 

 Capsule subglobose; otherwise as Buforrestia. — Flowers in small 

 clusters on very short axillary- peduncles, which generally perforate 

 the base of the leaf -sheaths. 



Species 8, viz, 6 in South-east Asia, and the 2 following : 



Spikes subglobose ; stems quadrangular . . .1. F. tenuis. 



Spikes linear-oblong ; stems terete . . . . 2. F. africana. 



1. F. tetivAs^ Benth. in Benth. et Hook. f. Gen. PI. iii. 851. Nearly 

 glabrous, except at the ciliate mouths of the leaf -sheaths. Stems 1-2 ft. 

 high (Mann) ; portions seen 9 in. long, subacutely quadrangular, with 

 8 subterminal leaves and 4 leafless lower nodes 2 J in. apart. Leaves ?>h 

 by 1^ in., broadly elliptic, tip very shortly acuminate, base rounded on 

 the quasi-petiole, J- J in. long. At each of the lower nodes is a leafless, 

 cylindric sheath J in. long, bored at the base by a peduncle ^ in. long, 

 carrying a dense head hardly J in. in diam. Sepals Jy in. Ion 

 glabrous. Filaments with a few hairs. Ovary glabrous, with 2-1 

 ovules in each cell. — Durand k Schinz, Conspect. Fl. Afr. v. 4;3;>. 

 Buforrestia? tenuis, C. B. Clarke in DC. Monogr. Phan. iii. 2;)4. 



^ower Guinea. Spanish Gaboon : Corisco Bay, Mann, 1873 ! 



The essential difference of Forresfia from Buforrestia lies in the 2-1-ovuled cells 

 of the ovary leading to a globose (not narrow-oblong) ca])sule. As I was not abso- 

 lutely certain about the number of ovules, and as Forrest ia is a genus confined to 

 South-east Asia, I attached this species with (?) to Buforrestia in DC. Monogr. Phan. 

 I.e. Mr. lientham has satisfied liiniself that the ovules are 2-1 only in each cell, and 

 he observes that the inflorescence is exactly that of Forresiia, and (as between these 

 two genera) considers that this species ought to be attached to Forrestia But I suspect, 

 when the fruit is known, that it will be found to be a new genus ; the quadrangular 

 branches and rounded leaf-base are exceedingly unlike Forrestia. 



2. P. africana, K. Schum. Nearly glabrous, except the ciliate 

 mouth of the leaf -sheaths. Stem 2 ft. (at least) long, trailing, rooting 

 at the nodes, terete or very obscurely angular, leafless below. Leaves 

 4 by i in., elliptic, narrowed at the base into a quasi-petiole \~^ in. 

 long. Peduncles less than ^ in. long, perforating the bai-e of the leaf- 

 sheaths. Inflorescences f-lj by i in., very dense unilateral spikes, 

 obscurely pubescent ; the ovate greea bracts | in. long, imbricated in. 

 two series (as in many species of Cyanotis). 



trpper Guinea. Cameroon?, Preuss, 1319 ! Bipinde, Zenker, 853 ! 



&' 



