532 xcvi. bignoniace^e (sprague). [lihigozum. 



Lower Guinea. Angola: between Otyenyau and Chihinde, 4100 ft,, JSaum, 

 40 ! German South-west Africa : Damaraland, Een ! Hereroland : Otyimbingue, 

 3300 ft., Pechuel-Loesclie ! 



XVZozamb. Dist. Bechuanaland : Ngamiland ; Kwebe Hills, Lugard, 35 1 

 Mrs. Lugard 46 ! near Serowe, Schonland, 1619 ! 1627 ! Hats between the 

 Zuga and the Tamalakane Rivers, McCabe, 3! Matabeleland : Shasha River, 

 Haines ! 



Also in South Africa. 



Three forms of this species may be distinguished : 1. brevispinosum proper, 

 which has simple leaves, tomentose even in the adult state ; 2. linifolium, which 

 has simple leaves, puberulous in the adult state ; and 3. spinosum, which has both 

 trifoliolate and simple leaves, glabrous in the adult state. 



3. R. somalense, Hallier f. in Engl. Jahrb. xxxii. 127. An erect, 

 nearly glabrous, thorny shrub, 3-10 ft. high. Branchlets virgate, 

 terete, 1-1-| lin. thick, glabrous, greyish. Leaves solitary or 2-4 

 fascicled on minutely tomentose cushions, trifoliolate ; petiole slender, 

 1-2 lin. long, slightly channelled ; leaflets orbicular-obcordate, about 

 2 lin. long, 1^ lin. broad, minutely glandular, the terminal one at- 

 tenuate into its petiole, the lateral ones oblique, subsessile. Flowers 

 solitary on the leaf-cushions. Pedicels 2-2-J- lin. long. Calyx cam- 

 panulate, 1-1| lin. long, irregularly 2-3-lobed, subbilabiate, minutely 

 and rather acutely 5-toothed, teeth pilose at the apex, calyx otherwise 

 glabrous. Corolla yellow; tube funnel-shaped, 3'i-4 lin. long, pilose 

 at the throat; basal cylindric portion 1^-lf lin. long; lobes sub- 

 orbicular, retuse, 2^-3 lin. in diam., ciliate. Stamens distinctly 

 exserted from the corolla-tube, inserted 2 J lin. above its base ; fila- 

 ments about 2 lin. long; anthers li lin. long, not apiculate. Ovary 

 f lin. long. Capsule not known. 



Nile Iiand. Somaliland : on mountains at Dadab, EUenbeck, 165 ! 

 Allied to the South African E. obovaium, Burch., from which it differs in the 

 size of the flowers and shape of the leaflets. 



4. R. zambesiacum, Baker in Kew Bulletin, 1894, 32. An erect 

 spiny shrub. Branchlets spreading. Leaves pinnate, 4-6 lin. long, 

 solitary or fascicled on small, nearly glabrous cushions ; common 

 petiole i-l lin. long, slender ; rhachis winged ; leaflets 5-9, very shortly 

 stalked, elliptic or obovate, 14-3 lin. long, f-l£ lin. broad, puberulous 

 or subglabrous. Flowers fascicled on the leaf-cushions. Pedicels 1-2 

 lin. long. Calyx campanulate, subglabrous ; tube 1^-2 lin. long ; lobes 

 h lin. long, roughly triangular, pilose at the apex. Corolla yellow, 

 glabrous ; tube campanulate-funnel-shaped, 5-6 lin. long ; lower cylin- 

 dric portion 2-2| lin. long, exceeding the calyx ; limb f in. across ; 

 lobes orbicular, 3A lin. in diam., crenulate. Stamens inserted 3i-4-| 

 lin. above the base of the corolla-tube ; filaments 2 lin. long ; anthers 

 exserted, 2-3 lin. long, slightly apiculate. Ovary f-1 lin. long. 

 Capsule elliptic-oblong, If in. long, 5 J lin. broad, beak 1| lin. long. 

 Nucleus of seed elliptic ; hyaline wing 1-1^ lin. broad. — K. Schum. in 

 Engl. Pfl. Ost-Afr. C. 363 ; Sprague in Dyer, Fl. Cap. iv. ii. 452. 



Mozamb. Dist. Portuguese East Africa : Lower Zambesi; Tete, Kirk ! 

 Also in South Africa. 



