316 NATURAL HISTORY OF PLANTS. 



dioecious apetalous. Sepals 4, in male flower, in short cupule at 

 base ; in female, in urceolate-globose tube, much imbricated. Sta- 

 mens 4 (of which 2 anterior), alternating with the calyx lobes 

 and marginally inserted at the base of the disk ; filaments short ; 

 anthers introrse, apex exappendiculate, base subcordate, longi- 

 tudinally 2-rimose. Germen free (in male flower rudimentary), 1- 

 locular; style short, afterwards dilated in stigmatiferous head, 3-4- 

 lobed ; placentas parietal, 3, 4 ; " ovules on each crowded. Berry 

 coriaceous, 1-locular, indehiscent or finally 3, 4-valved ; seeds oo ; 

 testa hard ; embryo axile albuminous ; radicle straight inferior." — 

 A shrub or tree ; leaves alternate, large, remotely serrate ; stipules 

 lateral, 2 ; flowers small, in ramified spikes springing from trunk or 

 branches ; each surrounded at base by a bract and 2 bractlets, lateral 

 membranous, concave, connivent in false involucel [Trop. South 

 America}). 



16. Ryania Vahl. 2 — Flowers hermaphrodite apetalous ; receptacle 

 subplane or slightly cupulate. Sepals 5, sometimes slightly peri- 

 gynous, much imbricated. 3 Stamens go, slightly perigynous free ; 

 anthers linear ; cells longitudinally dehiscent at margin or introrsely. 

 Disk interior to stamens, sometimes short cupulate, sometimes much 

 more evoluted or subpetaloid unequally cleft. Germen subfree, 1- 

 locular ; sty le erect, apex dilated stigmatiferous, subequally lobed or 

 divided into 2-G branches, capitate stigmatiferous reflexed ; placentas 

 parietal 2-5, oppositisepalous, go -ovulate. Fruit dry, ligneous- 

 suberose, 2-5-valved. Seeds co, arillate ; testa crustaceous ; embiyo 

 more or less albuminous, cotyledons wide ; radicle straight. — Trees ; 

 hairs often stellate ; leaves alternate entire penniverved, transversely 

 small veined, sometimes pellucid-punctuate ; flowers 4 axillary solitary 

 or few cymose (Tropical America?). 



1 Spec. 1. T. maoophylluin Pcepp. & Endl., 3 Interior 2, 3, dorsally often subconnate cos- 

 loc. cit. — Seem., op. cit., Suppl., 240. — Walp., tate, convolute. 



Rep., ii. 767 ; Ann., vii. 219. — Edmonstonia * Often large, handsome. 



pacijica Seem., loc. cit. — Walp., Ann., iv. 5 Spec. 6, 7. Peks., Enchir., ii. 69 (Patrisia). 



438. _ H. B. K., Nov. Oen. et Spec, v. 357 



2 Eel. Amer., i. 51, t. 9. — Endl., Gen., n. (Patrisia). — Deless., Ic. Sel., iii. 8, t. 14 

 5093. — Bentii., in Jonrn. Linn. Soc, v. Suppl., (Patrisia). — Te. & Pl., in Ann. Sc.Nat., ser. 4, 

 82.— B. H., Gen., 126, n. 8.— Patrisia L. C. xvii. 115.— Waxp., Pep., ii. 218; Ann., vii. 

 Rich., in Act. Soc. Mist. Nat. Par., 110. — 225. 



Pyanaa DC, Prodr., i. 255. 



