VOGHYSIACE^. 103 



II. EEISMEiE. 



5. Erisma Eudge. — Elowers irregular hermaphrodite ; receptacle 

 obconical concave, produced at back iu a bollow spur. Sepals 5, 

 inserted at margin of receptacle, unequal, persistent. Petals 1, 

 anterior inserted with, the calyx, unguiculate. Stamens 5, inserted 

 with perianth ; the anterior fertile, with subulate filament ; anther 

 introrse subhastate-lanceolate, 2-rimose; 4 posterior, unequal -rudi- 

 mentary or all abortive. Germen inwardly and anteriorly adnate to 

 receptacle, 1-locular ; cell anterior ; style slender, capitellate stig- 

 matiferous at apex ; ovules 2, collaterally inserted on posterior 

 placentas, ascendent, incompletely anatropous ; micropyle extrorse 

 inferior. Fruit coriaceous, indehiscent, inwardly adnate to receptacle, 

 persistent and crowned with accrescent unequal wing-shaped sub- 

 falcate coriaceous venose sepals. Seeds 1, 2 linear ; embryo exal- 

 buminous ; cotyledons elongate-narrow semicylindrical ; radicle 

 inferior short. — Trees ; leaves opposite petiolate coriaceous ; stipules 

 membranous, deciduous or persistent ; flowers in ramified compound 

 terminal racemes; pedicels 2-braoteolate. (^Guiana, North Brasil.) 

 —See p. 96. 



III. TEIGONIA. 



6. Trigonia Aubl. — Flowers hermaphrodite irregular ; receptacle 

 oblique, sub-plane or rather concave at apex. Sepals 5, unequal, 

 imbricated. Petals 5, alternate, imbricate, of which 2 are concave 

 or cucuUate, sometimes gibbous, or 1 -laterally incrassate; 2 are 

 ascendent membranous ; the fifth saccate or galeate at base 

 (lateral to the flower). Stamens 4-12, slightly perigynous; 

 filaments connate at base in a short tube afterwards cut, from 

 fissure, either antherless, small or shorter than the other fertile one ; 

 anthers introrse, 2-rimose. Germen free, oblique, 3-locular (extremely 

 hirsute) ; style slender, truncate stigmatiferous at apex, sometimes 

 oblique or cupular ; ovules in cells oo , descendent. Capsule 

 3- agonal, 3-locular, septicidal ; valves septiferous at middle and 

 solute from columella, the cartilaginous endocarp often separating there 

 from the exocarp. Seeds oo , involute in gossypinous wool ; albumen 

 thick fleshy ; cotyledons of the straight transverse embryo foliaceous ; 



