63 NATURAL HISTORY OF PLANTS. 



II. ASTEONIE^. 



47. Astronia Bl.— Flowers hermaphrodite; receptacle more or 

 less campanulate rather thick enclosing adnate germen and produced 

 beyond to a cupule sparsely glandular within. Calyx insertfed at 

 margin, conical, calyptriform or oftener lobed or opening unequally. 

 Petals 4, 5, inserted with calj'x, obtuse, contorted. Stamens 8-12, 

 inserted with perianth; filaments short rather thick compressed, 

 incurved in bud ; anthers shortly or rather widely dolabriform ; con- 

 nective thick compressed, at. base shortly or not spurred ; cells introrse 

 (in bud from inflexed anther extrorse), linear, 2-rimose. Germen 

 inferior, 2-6-celled, adnate to receptacle and depressed or concave at 

 apex and enclosing anthers in bud ; style columnar erect, at apex 

 more or less capitate stigmatose. Ovules in cells oo , anatropous, 

 narrow ; placentae affixed to internal angle, sometimes thick or oblong- 

 conical, ascending. Fruit capsular enclosed by coriaceous finally 

 unequally opening receptacle ; nerves of receptacle ramose rigid free 

 from parenchyma and opening stellately. Seeds oo , ascending, linear- 

 elongate, much narrowed on both sides ; raphe excurrent ; radicle of 

 small exalbuminous fleshy embryo inferior. — Trees or shrubs, glabrous 

 or with various indumentum ; leaves opposite petiolate, entire coria- 

 ceous, 3-nerved ; flowers in terminal compound ramose cymes, oftener 

 ebracteate. {^Malaya, islands of Pacific.) — See p. 22. 



48. Pternandra Jack.' — Flowers 4-merous; receptacle hemi- 

 spherical concave, externally glabrous or oftener {Kibessia^) variously 

 setose, tuberculate or clothed with straight imbricate, simple or hooked 

 prickles. Calyx gamophyllous, either 4-lobed, or opening unequally 

 or calyptriform longer or shorter conical, circumcissus. Petals 4, 

 obtuse, acute or lanceolate, contorted. Stamens 8, subequal (of 

 Astronia). Germen quite inferior and adnate to receptacle, depressed 



■{CycnopodimrC^. — Griseb. Fl. Brit. W.-Ind. 266 Mus. Lngd.-Bat. i. 5, fig. 1. — Apieuxis Gklff. 



{Cj/cmpodium) ; Emim. .Fl. Cub. Wright. 99 {Mi- Notul. iv. 672. 



teonia). — Don, Mem. Wern. Soc. iv. 317 {Com- ^ DC. Prodr. iii. 196 (1828). — Endl. Gen. n. 



stegia). — Walp. JJ«p. ii. 118; Ann. iv.7S2. 6265. — Naud. loc. cit. xviii. 262. — B. H. Gm. 



1 Mai. Misc. ii. App. 3 (1820-1822).— Hook. 771, n. 131.— Tei. Melast. 152.— Hectomitra'BL. 



■Comp. Bot. Mai/, i. 158. — Natid. Ann. Se. Nat. Mus. Lugd.-Bat. i. 6, fig. 2. — TrI. Melast. 153. 



ser. 3, xTiii. 260.— B. H . Gen. Ill, u. 130.— Tki. — Hook. Fl. Ind. ii. 552, — Macroplaeis Bl. loc. 



Melast. 153. — Hook. Fl.Ind. ii. 551.— Fwyckia cit. i. 7, fig. 3. 

 Bl. Flora (1831), 624; Sumphia, i. 24, t. 8; 



