CELASTRACEJî. 35 



leaves opposite or sometimes verticillate or alternate, stipules minute ; 

 flowers (miuute) iu slender stipitate (sometimes few-flowered) cymes. 

 {Central America, Mexico, Chili, 1 Madagascar?) 



11. Ptelidium Dup.-Th. 2 — Flowers of Euonymus, 4-merous ; 

 receptacle depressed. Calyx 4-partite ; folioles decussate, imbricate. 

 Petals 4, oblong sessile, imbricate. Stamens 4, alternipetalous, 

 interior to a short disk and alternate with its lobes ; filaments short 

 subulate, recurved at apex ; anthers small subglobose, extrorsely 2- 

 rimose Germ en compressed ovate, 2-locular and with short style 

 not thickened at apex. Ovules in cells 2, inserted a little above 

 the base ascending ; micropyle extrorsely inferior. Fruit dry, 

 thickly samaroid oval-subcordate, much compressed, produced at 

 margin to a thick venose coriaceous wing, 3 indéhiscent, 1-2-locular. 

 Seed ascending liuear-oblong ; " albumen fleshy thin; cotyledons of 

 embryo (green) flat foliaceous ; radicle inferior." — A glabrous shrub ; 

 leaves opposite petiolate coriaceous entire ; flowers in axillary ter- 

 minal and ramose cymes. {Madagascar. ') 



12. Zinowiewia Turcz. 5 — Flowers 5-merous (of Mceodendron or 



Euonymus) ; receptacle cupular. Sepals and petals 5, longer imbri- 

 cate. Stamens 5, exterior to 5 -angular disk ; anthers short iutrorse. 

 Base of germen imbedded in cavity of receptacle, 2-locular ; ovules 

 in cells 2, collaterally suberect ; micropyle extrorsely superior. Fruit 

 samaroidal, 6 stipate at base with unenlarged calyx, dry, 1-locular, 

 dilated above to an unequal dolabriform, sometimes rather lateral 

 membranous wing, otherwise dry indéhiscent ; seed suberect 

 cylindrical glabrous exarillate ; embryo ... ? — A glabrous bush; 

 leaves opposite entire (of Elcvoclendron) ; flowers 7 in axillary deeply 

 2-chotomous ramose cymes. 8 (Mountainous Mexico. 9 ) 



1 Spec. 7,8. Syr. Fl. Ltd. Oce.i. 340 {Myyinda). 4 Spec. 1. P. ovatum Poir. loc. cit.— Tul. 



H. B. K. Nov. Gen. et Spec. vii. 66 (part.), t. Ann. Sc. Nat. sér. 4, viii. 103. — Seringia ovata 



620.— C. Gay, Fl. Chil. ii. 9 (Myginda).— Spreng. 



Griseb. Fl. Brit. W.-Ind. 146 {Myginda). — s Bull. Mosc. (1859), i. 275.— B. H. Gen. 364, 



Chapm. Fl. S. Unit. St. 75 {Myginda).— Walp. n. 15. 



Rep. v. 402 {Myginda) ; Ann. i. 191; vii. 585 « Nearly of Seeuridacœ the smaller sometimes 



{Myyinda). recalling the legumen of Nissolia. 



- Gen. Nov. Madag. 24 ; Hist. Vig. Iles Afr. 7 Small crowded green. 



Austr. 25, t. 4.— Lamk. III. t. 916.— Pom. Diet. 8 A genus distinguished from the oppositi- 



Suppl. iv. 597.— DC. Prodr. ii. 11.— Endl. Gen. folious Elœodendra only by its alate fruit, 



n. 5683.— B. H. Gen. 363, n. 11.— Petalocarpum 9 Spec. 1. Z. integcrrima Turcz. -Walp. 



Ddp.-Th. Herb. Juss. (ex Toi.). — Seringia Ann. vii. 577.— Wimmeria? integer) ima Turcz. 



Spreng. Syst. i. 441 (nee J. Gay). Bull. Mosc. (1858). 



3 Wing sometimes obsolete. 



3—2 



