538 FLORA NIGRITIANA. 
theris subglobosis ; sterilia interiora filiformia, fertilibus lon- 
giora, infra apicem articulata. Ovarii rudimentum divisum 
in lacinias tres filiformes staminodia æquantes et iis sub- 
similes nisi continuas. In parte inferiore spicarum adsunt 
interdum flores nonnulli imperfecte hermaphroditi, ovario 
infero, ovula nonnulla continente, perianthii laciniis stami- 
nibus stylisque imperfectis coronato. Sfirps fteminea haud visa. 
The species is not referrible to any of Grisebach’s S. American 
sections, 
5. Dioscorea rubiginosa, Benth.; foliis alternis late cordatis 
subcuspidatis 7-9-nervibus supra glabris subtus caule inflo- 
rescentiaque ferrugineo-tomentosis, spicis fcemineis fascicu- 
latis.—Sierra Leone, Don. 
Specimen unicum foemineum ab omnibus a me cognitis tomento 
brevi ferrugineo (e pilis stellatis composito) distinctum. Folia 
caulina 3-4-pollicaria, floralia dimidio minora. Spice 3-4 
pollicares. Flores dissiti, sessiles, bractea parva lata cuspi- 
data, bracteola minima oblonga. Ovarium per anthesin lj 
lin. longum, obtuse trigonum, intus incomplete triloculare, 
placentis 3 linearibus utrinque uniovulatis perianthii laciniis 
interioribus oppositis. Stylus basi breviter simplex erectus, 
dem divisus in lobos 3 cum placentis alternantes recurvos 
breves canaliculato-dilatatos apice emarginatos laciniis pe 
rianthii breviores. ^ Perianthii lacinie extus tomentos®, 
exteriores ovate, interiores angustiores. 
6. Dioscorea demona, Roxb. Fl. Ind. 3. p. 805.—Wight, Ic. t. 
811.—D. virosa, Wall. ?—Aguapim, Vogel; a single spe 
cimen, with young male inflorescence, apparently the same a8 
the widely diffused East Indian plant. 
- Dioscorea vespertilio, Benth. ; glaberrima, foliis trisectis seg- 
mentis petiolulatis obovali-oblongis obtusissimis subcoriacels 
nitidis, fructus alis 2 latissime expansis transverse ovato- 
oblongis rigide membranaceis, tertia angustissima v. cost®- 
formi.— Sierra Leone, Don ; a single specimen, in leaf, with 
a few loose fruits. 
Tota glaberrima et levis, siccitate glauco-nigricans, quodam- 
modo Stauntoniam referens. — Petioli alterni, subtripollicare, 
~J 
