500 NATURAL HISTORY OF PLANTS. 



like floriferous branches axillary elongated, simple or slightly 

 divided in short pedicellate cymes (Trop. West. Africa*). 



90. Hyptiandra Hook, f. 2 — Flowers hermaphrodite, usually 

 5-merous ; receptacle shortly conical. Sepals small free. Petals 

 alternate, much longer, dorsally pilose, imbricated. Stamens 10, 

 5 oppositipetalous shorter ; anthers introrse, 2-rimose versatile. 

 Gynscceum placed on glandular thick depressed conical disk ; germens 

 free oppositipetalous villous ; ovules in each 1, descending; micropyle 

 extrorse superior ; styles inserted at summit of germens, afterwards 

 coalescing among themselves in short column, at apex only stig- 

 matiferous free minutely capitellate. Fruit carpels 1 or more, 

 seated on acute obpyramidal receptacle compressed ovate, subdru- 

 paceous ; exocarp subcoriaceous, putamen 1-spermous; seed ventri- 

 fixed ; testa membranous ; albumen very scanty ; embryo straight ; 

 cotyledons ovate plano-convex ; radicle short superior. — Shrub 

 somewhat glabrous, younger branches pubescent; leaves alternate 

 (bitter 3 ) narrow lanceolate entire coriaceous ; flowers small, shortly 

 pedunculate, axillary, solitary or few {East. Subtrop. Australia?). 



91. Castela Turp. 5 — Flowers dioecious, 4-merous ; receptacle short. 

 Calyx small, 4-fid. Petals 4, longer, imbricated. Stamens 8, 

 2- seriate ; filaments free inserted below 8-crenate disk ; scales 0, or 

 very short ; anthers (sterile in female flower or 0) 2-locular, at 

 margin or extrorsely rimose. Carpels 4, oppositipetalous (rudimen- 

 tary or in male flower), seated on disk ; germens free ; styles co- 

 alescing at middle, at apex inwardly stigmatiferous revolute ; ovules 

 in germens solitary descending incompletely anatropous ; micropyle 

 extrorse superior. Drupes 4 (or fewer from abortion), free patent ; 

 mesocarp usually thin ; putamen crustaceous ; seeds descending, with 

 wide funicle ; testa membranous ; albumen thin ; embryo inverse ; 

 cotyledons plano-convex ; radicle superior. — Shrubs ; branches often 

 spinescent; leaves alternate small very shortly petiolate entire 



1 Spec. 1. M. africana Hook, f., loc. cit.— Uentii., Fl. Austral., i. 374.— Walp., Ann., 

 Olit., Fl. Trop. Afr., i. 33 3. vii. 523. 



2 Gen., 293, n. 37 (Rutacea) ; 992, n. 8 a 5 In Ann. Mas., vii. 78, t. 5 ; in Bid. Sc. 

 (Simarubea).—V. Muell., Fragm., vi. 165. Nat., Atl., t. 126. — DC, Prodr., i. 738. — 



3 B;irk an ^ vvo °d- Spach, Suit, a Buffon, ii. 380.— Endl., Gen., 

 * Spec. 1. U. BidmilU Hook, f., loc. cit.— n. 5956.— A. Gray, Gen. III., t. 158.— B. H., 



Gen., 310, n. 9. 



