Dr Graham's Description of New or Rare Plants. 17S 



been described as rusty, from the characters formerly given having been 

 taken from dried specimens. Even these, however, if they have been 

 carefully prepared, remain white. To the same cause I wotlld attribute 

 the sparing tomentum on the upper surface of the leaves having been 

 overlooked, and the slight difference in the form of the limb of the co- 

 rolla in Vahl's description (Symbol. Botan. Pars iii. p. 14.), and in La- 

 marck's figure, from that which I have observed 



Cassia opaca. 



C opaca ; calycis foliolis obtusis, bracteolis solitariis infra pedicellos, an- 

 theris biporosis, glabris ; foliis 5-C jugis, foliolis oblongo-ovatis, ciliatis, 

 nitidis, glandula acuta, pedicellata, inter 1-3 paria inferiora ; stipulis 

 ovatis, magnis, erectis, deciduis ; racemis axillaribus, pedicellis patenti- 

 bus. 



Description" — Shrub^ erect. Branches scattered, and slightly flexuose, 

 green, and somewhat pubescent when young ; hark on stem and older 

 branches brown. Leaves scattered, spreading or divaricated, leafets in 

 5 or 6 pairs, oblong-ovate, dark green above, pale below, slightly revo- 

 lute and ciliated on the margin, every where else smooth and shining. 

 Petiole swollen, but having no gland, at its base, a small pointed stipitate 

 gland between one, two, or three of the lowest pairs of leafets. Stipula 

 Targe, ovate, erect, and embracing the axil of the leaf, dciduous. -ffa- 

 cemes axillary, collected towards the extremities of the shoots, erect, 

 half the length of the leaves ; peduncle without flowers for a considerable 

 distance above its origin, pubescent ; pedicels pubescent, long, straight, 

 spreading nearly at right angles to the peduncle. Floivers looking down- 

 wards, handsome, every part except the receptacle, anthers, and gennen, 

 of orange-yellow colour ; receptacle yellowish-green, and large. Calyx 

 segments smooth, blunt, of the same colour as the corolla, concave, two 

 outer phylla smaller. Corolla ; petals clawed, three upper subrotund, 

 notched, undulated, S-nerved, the lateral nerves branched from their 

 base, and reticulated towards the edge of the petal, central petal the 

 largest, two lower boat-shaped, blunt, without notch or undulations, veins 

 indistinct. Stamens very unequal. Anthers large, dark brown, smooth, 

 opening by two pores at the extremity. Pistil bent down ; germen green, 

 curved upwards, compressed, many-seeded, having on its surface a few 

 adpressed hairs. 



This is a very handsome species, the orange coloured flowers contrasting 

 very prettily with the opaque deep green shining foliage. We received 

 a plant from Raith this season, it having been raised by Mr Ferguson's 

 gardener from South American seeds, communicated by Professor Leslie 

 in 1825. 



Leonotis nepetifolia. 



L. nepetifolia ; " foliis cordatis, acutis, inciso-crenatis ; calycibus aristatis, 

 octo dentatis, dente supremo maximo, caule herbaceo." Bot. Reg. f. 281. 



Description — Annual. Stems herbaceous, erect, green, simple, but with 

 the rudiments of branches in the axils of the leaves, tetragonous, angles 

 very obtuse, sides deeply channelled. Leaves bright green, petioled, de- 

 cussating, spreading, cordate, slightly decurrent along the petioles, deeply 

 serrato-crenate, reticulato-veined, soft, inodorous, covered with fine short 

 and soft pubescence on both sides, veins and their reticulations prominent 

 below, slightly channelled above ; petioles as long as the leaves, and spread- 

 ing at right angles to the stem. Spike terminal. Flowers nearly sessile, 

 in dense, nearly globular, distant whorls, the upper flowers in each ex- 

 panding first. Bracteae numerous, sun-ounding the base of the whorl, 

 and nearly hid by it, reflected, keeled, linear, mucronate. Calyx curved, 

 subventricose and cucullatc, enlarging afler the corolla falls, 10-nerved, 

 bilabiate ; the upper lip 3-nerved, tapering into one long, straight tooth ; 

 the lower lip about half the length of the upper, S-nerved, and divided 

 into three teeth, spreading nearly at right angles to the tube; throat 



