in 



Dr Graham's List of Rare Plants. 



gated during the flowering. Flowers 

 spreading, continue many days ex- 

 panded, each having a small, point- 

 ed, marcescent bractea. Perianth 

 rose-coloured, obscurely veined, 3 

 outer segments rather the largest, 

 obovato-lanceolate, entire, pointed, 

 2 inner lanceolate, slightly serru- 

 lated towards the apex. Labellum 

 erect, 5-toothed in front, two teeth 

 being in a line on each side, and one 

 above and between the upper pair, 

 which are the largest, 3-cleft, seg- 

 ments spreading, fimbriated, 2 late- 

 ral ones by much the longest, semi- 

 circular, central segment Unear, and 

 nearly entire on its sides, aU deep 

 rose-colour when expanding, but 

 afterwards, especially the lateral 

 segments, which have a few small 

 dots of deep rose-colour, becoming 

 very pale. Anther-case conical, pale 

 yellowish-green, occasionally red- 

 dish at its base. Pollen-masses 4, 

 yellow, oblong, remain attached to 

 the hollow at the top of the column, 

 after the case is removed ; four fi- 

 laments, of greater length than 

 them, and deeper yellow, arise 

 from their lower ends, are in con- 

 tact, reflected along the pollen- 

 masses, and connected to each other 

 at their extremities. Germeri an 

 inch long, furrowed, enlarging up- 

 wards, pink. 

 The mode of growth of this plant is 

 curious, and analogous to that of 

 other genera among the Orchidese. 

 A bud forms immediately above a 

 joint, from this one or more flower- 

 ing branches push, and from the 

 origin of these many roots arise ; 

 branches with roots in like manner 

 proceed from these, and others from 

 these again, each after flowering 

 appearing gradually to decay. Per- 

 haps the plant, therefore, would be 

 more correctly described as having 

 a simple stem, the only portion 

 possessing in activity the powers 

 of life being what for convenience 

 I have called a branch. This mode 

 of propagation occurs chiefly at the 

 lowest joints, or immediately below 

 the flower. The species certainly 

 approaches nearly to the E. elonga- 

 tum, Bot. Mag. t. 611. and the flower 

 greatly resembles it, but is distin- 

 guished by the form and size of the 

 central lobe of the labellum, and 



the form of the leaves, which arc 

 never pointed, as well as by their 

 more fleshy texture. 

 I am indebted for the plant to M. 

 Harris at Rio de Janeiro, and to 

 Captain Graham of H. M. Packet 

 Service, who brought it to Europe 

 in 1824. It has been kept in the 

 stove, and grows freely among 

 pieces of bark. 



Eucrosia bicolor. 



The specimen in the Botanic Garden 

 differed from the plant figured in 

 the Bot. Mag. t. 2490. in having 

 the involucre of many nearly equal 

 segments, the coroUa of nearly an 

 uniform red-oran^e colour; in there 

 being six flowers in the umbel ; in 

 its much more vigorous growth ; 

 in the filaments being united for a 

 very little way only ; and in the leaf 

 appearing along with the flower. 

 I cannot doubt, however, that the 

 species is the same. A figure from 

 our specimen is given in Hooker's 

 Exotic Flora, t. 209. from the ac- 

 curate pencil of Dr Greville. A 

 second plant which flowered with 

 us, resembled this in all respects, 

 excepting in the involucre, which 

 had 3 large undulated segments, 

 and several smaller ; in the appear- 

 ance of two leaves at a time ; and 

 in the occurrence of several small 

 abortive flowers which expanded 

 before the others. 



The collection at the Garden is in- 

 debted for these plants to P. Neill, 

 Esq. who received them from Mr 

 Jameson, surgeon, Chili. 



Grevillea pubescens. 



Spec. Char. — G. pubescens; foliis el- 

 liptico-linearibus integerrimis mu- 

 cronatis, pedicellis recur vis, floribus 

 superioribus prsecocioribus, stylo 

 pubescenti. 



DiEscRivi:.— -Branches erect, round, 

 pubescent. Leaves scattered, el- 

 liptico-linear, entire, when young 

 revolute at the edges, mucronate, 

 pubescent, pubescence harsh on the 

 upper surface, softer beneath, mid- 

 rib distinct, veins obscure. Flowers 

 in abrupt, terminal, secund ra- 

 cemes. Pedicels ascending, straight, 

 (i inch long). Perianth pale yel- 

 low, tomentose immediately above 

 the nectarium, becoming brown in 

 withering, its segments remaining 



