37h SOCIÉTÉ BOTANIQUE DE FRANCE. 
BORDEREA. 
Inflorescentia axillaris et terminalis; stamina teretia, basi loborum peri- 
gonii inserta; styli evidenter distincti; fructus capsularis, dehiscens, subsphae- 
ricus; semina haud alata. Folia alterna; ramuli erecti, liberi; stirps tube - 
roso Jignosa. 
BORDEREA PYRENAICA (Dioscorea pyrenaica Bubani). — Mas : flores in 
racemos solitarios, geminos aut ternos, elongatos et compactos ordinati, bre“ 
viter pedicellati, bracteolati ; staminum filamenta capillaria; antheræ triangu- 
lares, subglobulose ; folia breviter petiolata. — Femina : flores paucissimi 
(1-3 in quolibet racemo), longe pedicellati, laxi; pericarpium magnum, 
limbo perigonali perstante coronatum, 3-alatum ; alis (id est valvulis) utrinque 
nervatis; nervis primariis transversis, approximatis, parallelis, secundariis 
interpositis et anastomosantibus; loculis 2-spermis ; seminibus fere renifor- 
mibus , amplis, compressis, levibus; folia sat longe petiolata. — Zn utroque 
sexu: perigonium minimum usque ad basin in sex lobos lineares, obtusos, 
herbaceos, margine membranaceo circumcinctos dissectum ; folia parva, ovata, 
basi cordata, acutiuscula, eleganter 5-7-nervata; caulis herbaceus, fistu- 
losus, striato-angulosus, apice ramosus, transfigens globulum foliis primordia- 
libus fasciculatis ante anthesin marcescentibus reconditum, et ortum e tuber- 
culo enormi pra statura plantæ, et fibris longissimis, ad extremum capillatis 
onusto; ramuli pseudumbellae instar ex apice cauliculi prodeuntes. Planta 
5- 10 centimetris longa, rigida, adscendens. 
Crescit in vallibus pyrenaicis hispanicis Pinède et Otal, in quibusdam 
cacuminibus quoque gallicis juxta cl. Bordère, et alibi, julio, augusto et sep- 
tembri. 
Nous ajoutons ici les caractères qui distinguent plusieurs genres, la plu- 
part exotiques, appartenant à Ja famille des Dioscorinées (1) : 
Dioscorea Plum., L., Juss. — Flores parvi, in racemos axillares dispo- 
siti ; perigonium campanulatum, corolloideum; stamina subulata, perigonii 
basi inserta ; styli tres, simplices; pericarpium adpressum, triangulare, trilo- 
culare ; loculis 2-spermis ; seminibus compressis, margine amplo membranaceo 
circumamictis; folia opposita, satis magna, cordata, acuminata, nervata 
nervis prominentibus ; caulis scandens; stirps tuberculoso-fæculenta. 
Oneus L., Juss. — Perigonium villosum, fere campanulatum ; tabo hexa- 
gono, oblongo, duabus squamulis externis stipato ; lobis acutis, forinsecus re- 
plicatis; stamina brevia, e basi loborum perigonalium nascentia; ovarium stylo 
(4) Dioscoreæ R. Brown; Dioscoreaceæ Endl. ; Dioscorineæ Kunth, 
