I 



CELA8TRACEJ£. 48 



acuminate, introrsely 2-rimose versatile (?), deciduous. Germen 

 superior free, thickened at base to a glandular disk ; style cylin- 

 drical tubular, apex divided into 5 short recurved alternipetalous 

 2-dentate hicmise extending inwards to linear stigmatiferous costa ; 

 cells 5 oppositipetalous, subincomplete at apex; ovules 5, 6, inserted 

 in 2 series in internal angle, anatropous. Capsule terete narrow- 

 oblong, style subulate persistent apiculate, septicidally 5-valvate ; 

 valves 2 -fid at apex ; epicarp thin fleshy ; endocarp ligneous. Seeds 

 1, 2, ascending, produced below to a vertical membranous wing; 

 albumen slightly fleshy; cotyledons of large axial embryo lateral 

 plane elliptical ; radicle terete inferior. — A glabrous ramose leafless 

 shrub ; branches remotely alternate terete striate produced to long 

 spines marked with squamiform bracts or their dark scars when 

 removed; flowers in short lateral alternate pedunculate few-flowered 

 cymes ; pedicels articulate below the middle ; the fructiferous ones 

 open curved. [New Mexico}) 



II? STACKHOUSIE^. 



29. Stackhousia Sm. — "Flowers hermaphrodite regular ; receptacle 

 concave cupular or hemispherical, lined with a thin disk. Sepals 5, 

 inserted at margin of receptacle, unequal, imbricate. Petals 5, 

 alternate, inserted perigynously with the sepals, much longer, free at 

 base, above united in a more or less elongate tube and at the apex 

 again free and reflexed; imbricate in prefloration. Stamens 5 

 alternipetalous, inserted with the perianth; filaments free erect, 

 2 alternate shorter ; anthers oblong, introrsely 2-rimose. Germen 

 free inserted at bottom of receptacle sessile, 2-5-locular ; style 

 erect, more or less deeply 2-5 -fid ; branches stigmatose within. 

 Ovules in cells solitary subbasilar ascending ; micropyle extrorsely 

 inferior. Emit 2-5-coccous ; cocci indehiscent finally dry. Smooth 

 or rugose or reticulate, sometimes with broad vertical wings; 

 mesocarp thin ; putamen smooth or rugose ; columella central. 

 Seeds ascending ; testa thin ; albumen fleshy ; embryo axile straight 

 nearly equal in length to the albumen; cotyledons short; radicle 

 inferior terete. — Perennial herbs ; oftener with a woody rhizome ; 

 branches herbaceous erect simple or slightly branched ; leaves alter- 



^ Concerning a genus formerly, "but not rightly, referred to -Kosatf(?(e-Q2«7// j'e^c ; see Nat. Sistori/ 

 f. Plants, i. 391, n. 6. 



