186 NATURAL HISTORY OF PLANTS. 



64. Prioria Griseb. — Flowers of HardmcMa ; sepals 5, closely 

 imbricated, stamens 10, free perigynous ; anthers introrse versatile; 

 connective apiculate. Germen central, shortly stipitate, 2-ovulate ; 

 style subulate ; apex minute stigmatiferous. Fruit obliquely ob- 

 ovate-orbicular, plano-compressecl, coriaceous-woody, 2-valved. Seed 

 1, large flat ; embryo exalbuminous ; cotyledons cohering ; radicle 

 short thick. — An unarmed tree ; leaves paripinnate ; leaflets coria- 

 ceous 1, 2-jugate ; stipules scale-like; flowers minute, in much- 

 branched terminal spikes ; bracts minute ; bractlets lateral, connate 

 into a 2-lobed cup a little shorter than calyx {Central America and 

 West Indies). Seep. 137. 



65. Cynometra L. — Flowers (of HardmcMa), 4-5-merous ; calyx 

 imbricated. Petals 4, 5, alternate, nearly equal or 3 inferior smaller, 

 imbricated. Stamens 10-cc ? free. Grermen central, 2-ovulate; apex 

 of style truncate or dilated, stigmatiferous. Fruit thick, turgid or 

 compressed, usually wrinkled or warty outside, straight or oftener 

 arched, 2-valved. Seed exalbuminous ; hilum ventral. — Trees or 

 shrubs, unarmed ; leaves paripinnate ; leaflets oblique unsymmetrieal 

 coriaceous, 1, or paucijugate ; flowers racemose ; racemes often short or 

 umbelliform, axillary or lateral on wood of stem or branches; superior 

 bracts of raceme small, inferior often much larger, imbricated; 

 bractlets or membranous, coloured {All tropical regions). See 

 p. 138. 



()('). Pterog-yne Tul. — Flowers of Cynometra ; perianth scarcely 

 perigynous. Stamens 10, free. Germen shortly stipitate, winged 

 at superior side, 1-ovulate ; style short ; apex truncate stigmatiferous. 

 Fruit piano-compressed samaroid indehiscent ; wing thin rigid oblong 

 falcate veined. Seed descending ; embryo exalbuminous ; radicle 

 straight exserted. — An unarmed tree ; leaves paripinnate ; stipules 

 minute; flowers very small, in short axillary catkin-like racemes; 

 bracts scale-like, in younger inflorescences much imbricated, finally 

 deciduous {Southern Brazil). See p. 138. 



67. Sindora Mig. — Flowers of Copaifera; sepals 4, with obliquely 

 cut margins, narrowly imbricated or subvalvate ; highest sepal 

 broader. Petal 1, superior vexillary sessile, plaited. Stamens 10, sub- 

 1-adelphous or 2-adelphous (9-1), anthers introrse 2-celled, longitu- 



