waltheiwa HORTUS JAMAICENSIS. J6? 



WALNUT, JAMAICA. JUGLANS. 



Cl. 21, or. 7. Moncecia Polyandria. Nat. or. Amentacex. 

 Gen. char. Male calyx a cylindrical anient, imbricate, scattered all round, with one- 

 flowered scales turned outwards ; no corolla, but a six-parted perianth ; filaments 

 eighteen to twenty-four, short, with oval anthers : Female calyx four-cleft supe- 

 rior ; corolla one petaled, four-cleft; the pistil has an oval germ, two styles, and 

 two large stigmas : pericarp a dry drupe with a grooved nucleus : seed a large nut, 

 variously grooved. One species of this genus is a native of Jamaica. 



BACCATA. BERRIED. 



Nux juglans trifolia, fructu magnitudine nucis moschata. Sloane, 

 v. 2, p 1, t. 157, f. l. Foliis iblongis obtusis pinnuto-iernalis, 

 J nut. bus singularibus baccatis ad alas. Browne, p. 346. 

 Leaflets in threes. 



Height twenty feet, stem as thick as the human thigh, with a comely top and a prey 

 hark, having some furrows on it. Leaves terminating, always three together, three 

 inches long, and one inch broad, thin, smooth, brownish green ; common petiole red- 

 dish, two inches long ; petiolnlesa quarter of an inch in length. Aments axillary, 

 two together, an inch long. The fruit hangs from the branches on peduncles, an inch 

 in length ; it is yellowish, oval, as big as a nut-meg, having under a thin mucilaginous 

 pulp a large shell. It grew in the town savanna between Spanish-Town and Two 

 Mile Wood, and on the banks of the Rio-Cobre Sloane. The Jamaica Walnut is fre- 

 quent about the Ferry ; it is a shrubby tree rising to a considerable height. The out- 

 ward part of the fruit is soft and pulpy, when ripe; but the hard ligneous shell, and 

 the partitions and lobes of the seetls, as weH as the parts of the flower, agree perfectly 

 with the general characters of the genus. 



The regia, or common Walnut tree, has been long ago introduced, but does not 

 thrive well in Jamaica. Tiie alba, or hiccory-nut, and nigra, or black walnut, have al- 

 so been introduced. 



No English Name. WALTHERIA. 



Cl 16, or 2. Monodclphia pentandria. Nat. os. Calumnifera. 

 So named in honour of A, F. Walther, professor of medicine at Leipsic. 



Gen. C\l\K. Calyx a double perianth, ouu-r lateral, three-leaved, deciduous; corol- 

 la five-petaled, pet ils obcordafce, sprea ling, fastened at bottom to the tube of the 

 filaments; stamens five filaments, united into a tube, free above, spreading^ short ; 

 anthers ovate ; the pistil has an ovale germ, a filiform style, and penciled stigma ; 

 the pericarp is an ob-ovate capsule, one-celled, two-valved ; seed one, obtuse, 

 wider above. Three species are natives of Jamaica. 



1. AMERICANA. AMERICAN. 



Fruticosa subhirsuta, foliis obhngo-ovatis serratis, fhribus capitatis. 

 pedunculis commit nib in, longtusculis, singulis folio singula! i orna- 

 tis. Browne, p. 2~6, W. 2. 



Leaves oval plaited, bluntly toothed, tomentose, head sessile. 



L 1 2 Stem 



