jH THE .lOURXAL OF BOTANY 



NEW TROPICAL AFRICAN RUBIACE.E. 

 By H. F. Weknham, D.Sc, F.L.S. 



Pausinystalia angolensis, sp. nov. 



Arbor trunco fj^racili jkI 20 m. altus, nisi floribus ipsis glaberrimii.s. 

 Folia oblanceokto-elliptica, breviter acuminata apice obtussima, basi 

 acuta, breviter |)etiolata; stipulce caducissima. Flores albi, fra- 

 grantes ; calyx intus densissime barbatus, extus pubescens, sub limbo 

 constrictus, limbo breviter late obtuse denticulato ; corollce glabrae 

 tubus infra gracilis, insuper subito in limbum liemispha^ricuni dilatatus, 

 lobis fdamentosis longiusculis. 



Angola : in mixed woods, Pungo Monga, 3 February, 1916, 

 Gossweiler 6226 ! 



A distinct species, readily recognizable by the indumentum and 

 limb of the calyx, and shape of the corolla. Leaves^\') cm. x 5'5 cm., 

 borne in a conical, shortly-branched crown at the head of a slender 

 trunk rarely more than 30 cm. in diameter. Ovary and calijx together 

 barely 2 mm. long. Tubular, lower part of corolla-tube 2 mm., 'upper 

 widened part rather longer, and 3 mm. wide at mouth. Filamentous 

 corolla-lobes 12 mm. or longer. 



DiricMetia Duemmeri, sp. nov. 



Frutex bipedalis glaber ; folia lanceolata acuminata 3-verticillata ; 

 stipahe vaginam truncatum formantes, inter petiolorum bases arista 

 rigidula neenon tenui onustam. Flores albi gi-acillimi inter longiores ; 

 calycis limbus integer obliquissimus nee lobatus aeuminatus subacuto 

 apice. 



Portuguese East Africa :• Porto AmeHa, July 1913, Diimmer 68 ! 



A glabrous species, differing from D. glabra Klotsch, its nearest 

 affinity, chiefly in the much longer corolla-tube and relatively smaller 

 limb. The straight branchlets are quite glabrous, bearing a succession 

 of stipular sheaths each nearly half-a-centimetre long, and surmounted, 

 between each leaf-pair, hx a slender but rigid arista 3 mm. long. The 

 leaves are from 7 to 11 cm. long, and 1*7 to 3*6 cm. broad, tending 

 to be obtuse at the base ; stalk 1 cm. long at most. The very oblicpie 

 calyx in the mature flower extends to about 1 cm. on the longer side 

 and barely 2 mm. on the shorter ; in the fruit the calyx is over 

 -3 cm. X 2*3 cm. on the larger side, the stiilk being fixed about 8 mm. 

 from the nearest part of the margin. The corolla, quite glabrous 

 externally, has a very slender tube 25 cm. long, and limb about 1 cm. 

 in diameter. 



Heinsia Gossweileri. sp. nov. 



Frutex minima, ])artibus subteiT'aneis lignosis elongatis ramosis, 

 oaule su]jer terrain brevissimo, dense ferrugineo - hirsuto. Folia 

 utrinque glaberrima, elli))tica v. obovata, apice nee acuminata ; 

 Mipul(B integriB ovatae obtusai. Flores solitarii, caules nanos ter- 

 minantcs. CorollcB tubus elongatus, extus pubescens, sulcatus, lobi 

 glabri ovati obtusi. 



Angola : Kubango, in open Mumma woods, 9 .lanuarv, 1907, 

 GoHaiveiler 2108 I and. without more })recise locality, -I20o ! 



