18 xcviii. ACAXTHACE-E (burkill). \21mnhergia. 



clad with weak hairs on both surfaces, 2 in. long, 1 in. broad. Flowers 

 on very short pubescent peduncles ; bracteoles lanceolate, acute, covered 

 with white hairs, at flowering nearly IJ in. long. Calyx-teeth many, 

 long, narrow, united into a very short tube at the base. Corolla-tuVje 

 very narrow, 2J-3 in. long, widening very slightly upwards to the 

 throat, where it is less than J in. in diameter; lobes white, ^ in. long. 

 Anthers mucronate above, long and narrow, muticous below, not hairy. 

 Stigma with two nearly equal lips, the lower indistinctly deltoid. 

 Capsule about 1 in. long, glabrous. 



Xiower Guinea. Angola : Iluilla ; Lopollo, in stony thickets, Welwitsck, 5009 ! 



ThiR species and the 5 followine: form a small group in which the corolla-tube widens 

 but little upwards. In its flower T. Ct/cnium for this reason resembles rather that of 

 Kome species of Jpomcca. 



24. T. gigantea, Lindau in Ann. Istit. hot. Roma, vi. 08. Stem 

 glabrous. Leaves ovate-cuneate, somewhat hastate at the base, cus- 

 pidate above, entire or irregularly toothed along the margins, glabrous, 

 1 J-2| in. long, li-2J in. broad, 5-nerved at the base; petiole f-lj in. 

 long. Flowers on peduncles 2\ in. long ; bracteoles ovate, rather acute, 

 IJ-lJ in. long, glabrous, deciduous. Calyx irregularly toothed, glan- 

 dular-pilose. Corolla puberulous on both surfaces; tube 7 in. long, 

 narrow ; lobes 1 in. long, white, obtuse. Anthers acute above, rounded 

 below, pubescent on the margins toward the base. Stigma 2-lipped. 

 Capsule 2 in. long. 



irile Xiand. Somaliland : Jabijo, by the River Daaa, in grass and under trees 

 Rim, 428, 1498. 



If this species and the following are mi«(placed here, their affinity may perhaps be 

 with T. alata. It is probable that T. gic/antea will prove to be a form of T. guerJceana. 



25. T, guerkeana, Lindau in Engl. PJi. Ost-Afr. C. 306. Stem 

 climbing, glabrous. Leaves cordate-ovate with a tooth on either 

 margin towards the base, l|-4 in. long, 1^3 in. broad; petiole |- 

 l\ in. long. Flowers on peduncles lJ-3 in. long; bracteoles ovate, 

 rather acute, reflexed. Calyx-teeth many, irregular, glandular. Corolla- 

 tube narrow, upwards of 5 in. long, puberulous at first, later gla- 

 brous ; lobes |-1 in. long, white. Anthers acute above and below, 

 puberulous on the margins. Stigma 2-lipped, exserted, the lips 

 unequal. 



wile X.and. British East Africa : Nyika country, Eoht, 2410 ; Ukamba ; Ula 

 District, Fischer, 465. 



26. T. hamata, Lindau in Engl. Jahrh. xx. 2. Stem climbing, 

 rojgh with stiff hairs. Leaves ovate-hastate or cordate, somewhat 

 acuminate above, with teeth along the margin, scabrid on both surfaces, 

 \)\ in. long, 2 in. broad ; petioles l-lj in. long, scabrid". Flowers on 

 scabrid peduncles 1-1 J in. long; bracteoles lanceolate, long-acuminate, 

 fused for nearly their whole length along their dorsal margins, pilose, 

 at flowering 1 in. long. Calyx pilose below; teeth linear. Corolla- 

 tube IJ in. long, scarcely widening upwards; lobes { in. long, retuse. 



