374 NATURAL HISTORY OF PLANTS. 
GENERA. 
I, OURATEA. 
1. Ouratea Avusi.—Flowers hermaphrodite; receptacle convex. 
Sepals 5, or more rarely 7, 8, very often coloured, imbricated, per- 
sistent or deciduous. Petals 5, slightly longer than calyx, obovate, 
shortly unguiculate, imbricated or contorted, usually deciduous. 
Stamens 10, inserted with perianth, 2-seriate ; filaments free, very 
short; anthers elongated, outwardly rugose, 2-locular, poricidal at 
apex. Carpels 5 (or more rarely 6-8), alternipetalous, inserted at 
summit of receptacle, produced in cylinder beyond insertion of 
androceum. Germen free, 1-locular ; style more or less gynobasie, 
afterwards strictly coalescing in long conical tube, at apex stigma- 
tiferous, not thickened, free at a greater or less height, or not 
distinct; ovules in each germen solitary, ascending, subbasilar ; 
micropyle extrorse, inferior. Drupes 5, or fewer by abortion, 
inserted on variously enlarged coloured receptacle. Seed suberect ; 
testa membranous; embryo exalbuminous ; cotyledons plano- 
convex, fleshy ; radicle short, inferior—Glabrous trees or shrubs ; 
leaves alternate, persistent, simple, coriaceous, nitid, sharply serrate; 
nerves crowded, parallel; stipules 2, usually slightly super-axillary, 
free or connate ; flowers in terminal or axillary racemes, sometimes 
subumbellate, compound cymiferous ; pedicels bracteolate, articulate 
at base (47 Trop. and Subtrop. regions). See p. 365. 
2. Elvasia DC.'—Flowers 3-6, or oftener 4, 5-merous; recep- 
tacle depressed conical. Sepals petaloid and petals same in number, 
alternate (of Ouratea or Ochna). Stamens hypogynous, 6-10, or « ; 
filaments inserted slightly above perianth, persistent; anthers elon- 
gated (Luelvasia’) or short (fostmannia’), poricidal at apex. Germen 
placed at summit of slightly stipitiform receptacle, outwardly sul- 
cate; cells 2 (Hostmannia), ox 4, 5 (Euelvasia), alternipetalous ; style 

1 In Ann. Mus., xvii. 422, t. 20; Prodr., i, 738.—A. S. H., Fl. Bras. Mer., i. 69, not.— 
A. Juss., Mém. Rutac., 60, not.— ENDL., Gen., n, 5957.—B. H., Gen., 318, n. 4. 
2 pt,, in Hook, Lond, Journ., v. 648. # Px., in Hook, Icon., t. 709. 
