76 



Acroeephalug Benth . 



A. cylindraceus Oliv. in Transact. Linn. Soc. XXIX (1875) p. 138. 

 Congo (Alfr. Dewèvre n" 993). 



— diTaricatiis Briq. (sp. nov.). — Herba perennis 

 data, ramosa, ramis divaricatis, iiUernodiis 

 elongalis, viridibus, parce crispule pilosis. Folia 

 oblonga, apice acuta, vel suboblusa, marginibus 

 longe et leviter convexis, basi sensim extenuala, 

 brevitor petiolata, utrinque viridia, grosse et 

 parce pilosa, pilis db crispulis; nervatio simplex, 

 subtus parum prominula; serratura constans ex 

 crenis vel dentibus crenatis, parvis, crebris, 

 irigonos ± sphaericos constituentibus. Capitula 

 nunc terminalia apice ramorum, nunc sessilia 

 inter ramos divaricates, sphaerico-cylindracea ; 

 bracteae exteriores, foliis subsimiles tantum 

 breviores; bracteae internae membranaeeae latis- 

 sime rhomboideae, calieibus fructiferis aliq. bre- 

 viores. Calix sub anthesi minute campanulatus, 

 maturus longe lubulosus, membranaceus, pilis 

 raris patulo-crispulis ornalus, leviter incurvus ; 

 labrum integrum obtusum; labiolum integrum, 

 obtusum, labro aliq. brevius. Corolla pallide 

 lilacina exserta; tubus cylindricus, superne aliq. 

 ampliatus; labrum erectiusculum, 3-lobum, lobis 

 latis obtusis vel rolundatis; labiolum patens, 

 oblongum, apice rotundatum. Genitalia exserta; 

 stamina filamentis glabris, proierandrica ; nuculae 

 subsphaericae flavescenles, laeves, minutée. 



Planta ultra 40 cm. aha. Internodia media 

 ad 12 cm. longa et ultra. Folia superficie 



