364 XLVII. § MIMOSEH (OLIVER). [ Pithecolobium. 
1. P. altissimum. Tall tree; extremities, leaf-rachis and pe- 
duncles rusty-puberulous, branches at length glabrate. Leaves 4—8 in. 
long ; pinne 4—7-jugate, leaflets linear-oblong, glabrous, }—4 in. long, 
1 line, more or less, broad, 20—25-jugate. Plowers capitate, sessile ; 
peduncles ¢ in. more or less, axillary, solitary or fascicled or shortly 
racemose on lateral branchlets. Calyx tubular, shortly dentate, nearly 
glabrous. Petals united nearly throughout, 2-24 times longer than 
calyx.’ United base of the filaments included. Peduncles in fruit 
often stout. Legume compressed, spirally contorted, more or less con- 
stricted between the seeds at intervals of }—4 in., 8-10 in. long, 4-3 
in. broad.—Albizzia altissima, Hook. f. Fl. Nigr. 332. 
Upper Guinea. Niger Expedition, Dr. T. Vogel! Aboh, Niger, Barter! Nun 
and Camaroons river, Mann! 
Orver XLVIII. ROSACEA. (By Prof. Oliver.) 
Flowers regular, rarely irregular, hermaphrodite (polygamous or 
dioicous in Pygeum, Brayera, Cliffortia). Calyx free (or apparent tube 
adherent to the ovary), tube various, short or elongate, plane cam- 
panulate or urceolate, lobes usually 5 imbricate or biseriate or with 
alternating bracteoles. Stamens perigynous, indefinite (or definite in 
Alchemilla, some Cliffortie and Neurada); filaments free or more or less 
coherent in Chrysobalanee. Carpels 1 or more, definite or indefinite, 
free or consolidated with the calyx-tube or receptacle; styles as many 
as carpels, oblique and subterminal or ventral. Ovules 1 or 2 in Trop. 
African Genera. Fruit various, if superior the carpels dry or drupa- 
ceous, if inferior baccate. Seed erect or pendulous, almost invariably 
exalbuminous.—Herbs, shrubs or trees. Leaves various, simple or 
compound, usually alternate and stipulate. Inflorescence very various. 
A rather large and wide-spread Natural Order, most numerous in temperate regions 
of the Northern hemisphere. Brayera and Griffonia are the only genera peculiar to 
tropical Africa, but perhaps the latter is not generically distinct from Acioa, Aubl., of 
tropical America, though maintained at present, following the “Gen. Plantarum” of 
Bentham and Hooker. Cliffortia is exclusively African, but restricted to the Cape, 
with but the exception of one species, 
Shrubs, sometimes scandent, or trees. Leaves simple, entire. Carpel solitary, free; 
ovules 2, erect; style basal (§ Chrysobalance). 
Ovary sessile at base of calyx-tube; I-celled. . . . . . . 1. CHrYsOBALAN@S. 
Ovary sessile in mouth of calyx-tube. 
Ovary wholly or partially 2-celled. Filaments connate only 
NE hs 8 eG ee 2. ParINARIUM. 
Ovary 1-celled. Filaments united in long strap. . . . . 3. Grirronia. 
Trees or shrubs. Leaves simple, entire or serrate. Carpel usually solitary, style 
subterminal ; ovary superior, with 2 pendulous ovules (§ Prunee). 
Petals small. Pericarp dry, coriaceous ee 4. PyGEum. 
Petals conspicuous. Fruit a drupe (cultivated only) . . . . *Prunus. 
Shrubs, usually aculeate (in Africa). Calyx persistent, inferior; 
lobes ebracteolate. Stamens ao. Carpels 0, inserted on 
convex receptacle. Ovules 2, pendulous (§ Rubee) . . . 5. Rusus. 
