370 THE JOURNAL OF BOTANY 



in sm?Jl shortly stalked heads on the ultimate branches associated 

 with little groups of stinging hairs. Achene chestnut-brown, 

 2 mm. long. 



Near U. ohovata Benth., but distinguished by the elhptic- 

 ovate, not obovate, leaves with fewer lateral nerves, 1 or 2, not 3, 

 and by the perianth in the female flower completely enveloping 

 the ovary. 



U. Mannii Benth. & Hook. f. var. paucinervis, var. nov. 

 Planta /o/«is quam in specie minoribus, interdum obovato-ellipticis, 

 cum nervis lateralibus utrinque 2, raro 3, super basin trinervatam. 

 Inflorescentia faminea in axillis foliorum superiorum, contermino 

 ovato, usque ad 10 cm. longa (pedunculo vix 4 cm. longo incluso), 

 ramis patentibus. Ovariuvi ovoideum, apice obliquo stigmati- 

 ferum, perianthium leviter lobatum excedens. 



Hab.—IjagoB ; Dalziel, 1021 ! Herb. Kew. 



U. cuneata, sp. nov. Planta caule crasso tereti, hispidulo, 

 processubus tenuibus cylindricis apice breviterstimuliferis armato. 

 Folia magna, breviter petiolata, cuneata, apice breviter acuminata, 

 basi obtuse rotundata vel paene truncata, margine denticulata et 

 leviter undulata, nervis utrinque 3-4 lateralibus ascendentibus 

 super basin 3-nervatam, nervis et venis transversis horizontalibus 

 subtus conspicuis, in facie superiore modo in nervis puberula, 

 subtus sparse pubescentia, cystolithis baud apparentibus ; petiolus 

 crassus velut in caule armatus. Inflorescentia foeminca (juvenilis) 

 puberula, rhachi robusto stimulis interdum in processubus irregu- 

 lariter ramosis elevatis obsito, ramis paucis patentibus ; floribus 

 in cymulis unilateralibuse ramulis ultimis brevibus ortis. Perian- 

 thium paene ad basin 4-partitum, segmentis obovato-oblongis 

 margine superiore ciliolatis, ad medium ovarii ovoidei attingens. 

 Stigma apicale brunneum, penicillatum. 



Hah. — Liberia ; Since basin, Whyte ! Herb. Kew. 



Leaves 15-17-5 cm. long, 9-10-5 cm. wide ; petiole 1-2 cm. 

 long. Young female inflorescence about 5 cm. long. Ovary barely 

 1 mm. long. 



A very distinct species, at once recognised by the large wedge- 

 shaped leaves. 



U. usambarensis, sp. nov. Frntex forsan scandens, caulibus 

 glabris, inermibus, cortice cinereo striato. Folia coriacea, elliptica 

 vel ohovata, apice acuminata, basi obtusa, rotundata vel obsolete 

 cordata, margine Integra, utrinque saepe nervo singulo inconspicuo 

 laterali ascendente super basin conspicue 3-nervatam, glabra, in 

 facie inferiore sparse cystolithis brevibus linearibus notata ; 

 petiolus tenuis. Stipulcz ovatae, acutee. InflorescenticB inasculcB 

 in parte caulis superiore et ramis juvenilibus brevibus axillariae, 

 glabrae, ramis lateralibus patentibus ; floribus in ramis vel ramulis 

 brevibus quasi glomeratis. Perianthium 4-partitum, segmentis 

 ovatis, concavis, glabris. 



Hah. — Usambara ; Derema, Volkens, 122 ! Scheffler, 196 ! 

 Herb. Kew ; Herb. Mus. Brit. 



Branches of the second season up to 4 mm.- thick. Leaves 

 4-5-6 cm. long, 2-5-3-5 cm. wide ; one or both members of the 



