VERNONIACRiE AFRICAN.^; NOVJ-] 91 



approaching V. amhigua, from which the present plant differs 

 chiefly in its rosulate, only puberulous leaves, elongated inflores- 

 cences, larger heads, and acute not lengthily acuminate involucral 

 leaves. 



Vernonia (§ Hololepis) Duemmeri, sp. nov. Caule erecto 

 sursum ramuloso puberulo jam glabrescente, foliis subsessilibus 

 ovato-oblongis apice mucronatis basi obtusis margine crenulatis 

 membranaceo-coriaceis supra scabridis subtus brunneo-pubescenti- 

 bus, capitulis mediocribus circa 60-flosculosis ad apicem ramu- 

 lorum (nonnunquam perbrevium) solitariis foliis ultimis perpaucis 

 stipatis, involucri subhemisphaerici pluriseriati phyllis lineari- 

 lanceolatis (intimis lineari-oblongis) spinuloso-acuminatis interi- 

 oribus gradatim elongatis tela araneosa subsparsa onustis, corollis 

 breviter exsertis, achicniis cylindrico-turbinatis 10-costatis inter 

 costas pilosis, pappo biseriali setis albis exterioribus quam interi- 

 ores multo brevioribus. 



Hab. Uganda, Zinga and Ripon Falls ; Di'unmer, 35. [Also 

 Grass land, Uganda ; Bev. C. Wilson, 72 in Herb. Kew.] 



Suffrutex vel frutex, ex schedis cl. detectoris 2-4 ped. alt. Folia 

 pleraque 4-5 x l"5-2 cm., siccitate brunnescentia ; petioli lati, 

 2-3 mm. long. Capitula 14 x 18 mm., quidque foliis 1-5 nunc 



2 cm. (vel etiam majus) long., nunc (sed raro) usque ad 5 mm. 

 diminutis stipata. Involucri phylla extima 2 mm., intermedia 

 4-6 mm., intima 7"5-8 mm. long. ; horum acumen fuscum, leviter 

 induratum, glabrum. Corollae tubus 7 mm. long., anguste infundi- 

 bularis, triente inf. -3 mm. lat., faucibus 1 mm. ; lobi lineares, fere 



3 mm. long. Styli rami 3 mm. long. Achaenia longit. 3 mm. 

 paullulum excedens, optime costata, grisea. Pappi setse ext. fere 

 1 mm. long., int. 5 mm. 



Easily distinguished by foliage and involucres from the few 

 species of this section. 



Probably conspecific with this is another Kew plant collected 

 by A. Whyte in a journey from Nandi to Mumias. 



Vernonia (§ Xipholepis) paludigena, sp. nov. Rhizomate 

 crasso sparsim fibroso caulem simplicem erectum supra basin 

 nudam foliosum scabriusculum fulciente, foliis late oblanceolatis 

 vel oblanceolato-obovatis apice mucronatis basi in petiolum brevem 

 longe attenuatis margine subargute calloso-dentatis coriaceis nitidis 

 utrinque scabridis costaque media pag. inf. puberula, capitulis 

 submajusculis multiflosculosis in corymbos oligocephalos digestis, 

 involucri subhemisphaerici circa 7-serialis phyllis lineari-lanceolatis 

 longe acuminatis margine serrulato-ciliolatis chartaceis superne 

 membranaceis viridibusque exterioribus saepe plus minus patenti- 

 bus recurvisve, achaeniis anguste cylindricis 10-costatis basi callosis 

 glabris, pappi squamis anguste linearibus acutis setis 2-serialibus 

 scabriusculis dilute stramineis. 



Hab. Belgian Congo, in a marsh at Kabinda; Kassner, 2832. 



Herba fere metralis. Caulis 3-4 mm. diam., eximie striatus. 

 Folia inferiora baud rosulata etsi perpauca infima approximata, 

 12- fere 20 cm. long., ultra medium 4 cm. lat., in sicco supra 



II 2 



