ULMACEM. 193 



Trees ; leaves alternate, widely serrate ; stipules lanceolate mem- 

 branous, deciduous; flowers in ramose glomeruliferous spikes. 1 

 [Peru, Cuba. 2 ) 



II. more^:. 



12. Morus T. — Flowers monoecious or dioecious, 4-merous. 

 Sepals 4, decussately imbricate, persistent and accrescent around 

 fruit, closely connivent and finally succulent. Stamens 4, opposite 

 sepals (in female flower rudimentary or generally 0) ; filaments 

 inserted under sbort thick rudiment of gynœcium, free, inflexed in 

 bud, finally straight or recurved ; anthers introrse ; cells 2, reniform, 

 rimose. Germen (in male flower rudimentary) sessile, 1-locular; 

 style terminal short, afterwards divided into 2 subulate papuliferous 

 branches; ovule in cell 1, inserted under apex, descending, campy - 

 lotropous; micropyle extrorsely superior. Fruit drupaceous, en- 

 closed by succulent sepals ; exocarp thin, thicker at margin ; putamen 

 testaceous. Seed descending ; testa brittle ; albumen fleshy ; coty- 

 ledons of incurved embryo oblong ; radicle ascending long cylindrico- 

 conical. — Trees or shrubs ; juice milky or opal ; leaves alternate, 

 2-stichous, entire or dentate or lobed, unequal at base ; stipules 

 lateral free, caducous ; flowers axillary or subaxillary ; inflorescence 

 solitary stipitate ; receptacle in males elongate subcylindrical, on 

 one or both sides somewhat compressed longitudinally ; glomerules 

 crowded, more numerous at margin and wanting on one or both 

 surfaces (hence naked sulciform) ; female receptacle shorter ovate or 

 oblong, also glomeruliferous ; drupes with succulent calyces finally 

 united in syncarpia. (All trop, and subtrop. regions.) See p. 144. 



13. Ampalis Boj. 3 — Flowers nearly of Morus, 4-merous; perianth 

 in male flower subvalvate, but in female decussately imbricate, 

 persistent and growing succulent in syncarpia around fruit and 

 stamens involute (of Morus). Germen compressed ovate; placenta 

 thin or sometimes (Pachytrophe 4 ) thicker and more or less promi- 

 nent, 1 -ovulate. Fruit drupaceous; flesh scanty; albumen of 



1 A genus hitherto generally excluded from - Spec. 2. Griseb. Cat. PI. Cub. 57. — Walp. 



Ulmeœ on account of the number of atamena Ann. i. C40. 



(Pl. Prodr. xvii. 152). But 10 stamena are 3 Sort. Main: 291.— Endl. Gen. 1375.— Bur. 



oftener obaerved in Holopteka. Ampelocera, in Prodr. xvii. 250. 



pur opinion, is certainly Celtidea. * jSvR.loc.cit. 234. 



vol. vi. 13 



