488 NATURAL niSTORY OF PLANTS. 



65. Casimiroa Llav. & Lex. 1 — Flowers polygamous-dioecious ; 

 receptacle depressed conical. Sepals usually 5, free or connate at 

 base, narrow, imbricated. Petals same in number, alternate, valvate, 

 incurved at apex. Stamens 5, alternipetalous ; filaments inserted 

 below, very small annular disk, free ; anthers introrse, subcordate or 

 subsagittate at base, longitudiually 2-rimose (in female flower 

 smaller, effete). Germen (rudimentary in male flower) free, sessile, 

 subglobose, cells 5, or more rarely 6-8 ; style short, thick, after- 

 wards divided into a like number of thick reflexed stiinnatiferous 

 lobes ; ovule in each cell 1, inserted at internal angle, descending ; 

 micropyle extrorse superior, 7 crowned with 2-lobed obturator. 

 Drupe large, pomiform, depressed- globose ; pulp sapid ; pyrenas 

 usually 5, crustaceous, 1-spermous ; seeds oblong-compressed ; hilum 

 ventral, elongated ; testa subcoriaceous ; embryo exalbuminous ; ra- 

 dicle short ; cotyledons fleshy, amygdaloid. — Ramified trees ; leaves 

 alternate, digitate, 3-7-foliolate ; folioles petiolulate, entire or slightly 

 serrate, glabrous or pubescent, thinly pellucid-punctuate ; flowers 3 in 

 more or less ramified axillary cymiferous racemes 4 (3Iexico b ). 



66. Phellodendron Rupr. 6 — Flowers dioecious ; sepals 5-8, free 

 or connate at base. Petals same in number, alternate, inwardly at 

 middle pilose- carinate, valvate, incurved at apex. Disk shortly 

 columnar. Stamens (small, effete in female flower) equal in number 

 to petals, and alternating with them ; filaments short, subulate ; 

 anthers large, incurved, introrsely 2-rimose. Germen (rudimentary 

 5-lobed in male flower) 4, 5-locular ; style . . .? ovules (solitary?) 

 descending ; micropyle extrorse superior. Drupe pisiform, 5-pyre- 

 nate ; mesocarp oleose-lacunose ; 7 seeds compressed ; testa black, 

 crustaceous ; albumen fleshy, scanty ; embryo rather straight ; coty- 

 ledons flat, oblong ; radicle superior. — A glabrous tree ; leaves 

 opposite, imparipinnate ; folioles ^opposite, petiolate, articulate, 

 oblong-lanceolate, acuminate, unequal at base, scantily pellucid- 

 punctuate ; flowers in compound terminal and axillary racemes, 

 sometimes subcapitate ; pedicels articulate (Ma?ic/wuria 8 ). 



1 Nov. Gen. Descr., fasc. ii. 2. — Endl., Gen., s Seem., Toy. Her. Bot., 273, t. 51, 52. 



n. 687').— 15. II., Gen., 302, n. 69. 6 In MaaJc., 526, n. 16.— Maxim., Primit. 



2 Coata double ; nucleus oblique. Fl. Amur., 72, fc. 4.— B. H., Gen., 301, 991, n. 

 s " Viridulis," small for ]>lant. 63. — H. I3n., Adansonia, x. 330. 



4 A genus remarkable for its involute cell, ' Fragrance terebinthateons. 



whence sc.mcwliat a];proaebing the EupJwrbiacece. s Spec. 1. P. amurense Rcpr., loc. cil. — 



The thick edible sarcocarp rare in the order. Walp., Ann., vii. 530. 



