Dr Graham's Description of New or Rare Plants. 193 



Sieversla rosea. 



S. rosea ; foliis radicalibus, interrupte pinnatis, pilosis, pinnis subtrifidis, 

 base cuneatis, caule ascendente piloso, trifido. 

 Description — Root perennial. Stem ascending or erect, trifid, hairy, 

 nearly round, red when exposed to the sun, branches occasionally sub- 

 divided. Radical-leaves numerous, petiolate, shorter than the stem, in- 

 terruptedly pinnate, veined, pale green, especially behind, loosely co- 

 vered with long shining hairs, behind hairy only on the veins, and there 

 more obviously than in front ascending laterally from tumid bases ; pin- 

 nae smaller downwards, subtrifid, and terminal segments tridentate. 

 Stem-leaves smaU, petiolate, opposite in the middle of the stem and at its 

 subdivisions, except where a single ultimate branch or peduncle arises, 

 when the leaf is solitary, stem clasjnng, pinnatifid, segments nerved, 

 lanceolate, incised or entire, smaller in successive divisions, the branches 

 and segments more narrow. Stipulce lateral, accompanying the stem- 

 leaves only, adhering to the petiole, acuminate, eniire' or incised, re- 

 sembling the stipuloe on the petioles of roses. Peduncles single-flowered, 

 at first nodding, afterwards erect, hairj'. Cali/jc coloured, hairy, 10-cleft, 

 5 segments broader, shorter, ovate, acute, never expanding, reticulate, 

 5 lanceolato-linear, longer, spreading, cuticle of the tube detached, and 

 slightly inflated. Petals rhombeo-ellijjtic, keeled at the base, at first 

 yellowish, afterwards white where covered by the calyx, rose-coloured 

 where exposed, emarginate, and slightly diverging at tlie apex. Stamens 

 very numerous, inserted into the calyx within the corolla ; filaments 

 hairy, nearly as long as the corolla, colourless ; anthers yellow, incum- 

 bent. Nectar)^ an erect yellowish -green cup, its edge tooth-crenated, 

 surrounding the centre of the flower, immediatelj' within the stamens; 

 pistils numerous, slightly stipitate, equal in length to the stamens ; 

 ^ermens silky; styles smooth except at the base, erect, colourless, per- 

 sisting and becoming red, their hairy bases being greatly elongated, form- 

 ing a feathered awn to the fruit ; stigmata blunt, greenish-yellow, ovules 

 solitary, erect. 

 Seeds of this species were gathered by Mr Drummond on the Rocky Moun- 

 tains, and sent by him to the Botanic Garden in 1827. It has been in 

 cultivation ever since, is very vigorous, and flowers most freelv in a dry 

 border in May. 



Vacciniurn humifusum. 



"V. humifusum ; caule fruticoso, prostrato repente ; foliis sempervirenti- 

 bus, ovatis, subacutis, integerrimis utrinque glabris, ciliatis; pedunculis 

 axillaribus, solitariis unifloris, pluri-bracteatis ; antheris obtusis. 

 Description — Stem woody, very slender, much branched, prostrate, cses- 

 pitose, rooting, round, grey; branches subpubescent. Leaves (half an inch 

 broad) ovate, smooth on both sides, ciliated, coriaceous, on short petioles, 

 of very unequal size, acquiring their full dimensions only towards the 

 apices of the branches, towards the origin of these being generally small, 

 Eubrotund, and, as it would seem, formed from the altered condition of 

 the scales of the bud at the extremity of the former year's shoot. Flowers 

 solitary, axillary, nodding, on peduncles twice the length of the petioles, 

 along which are scattered four or five ovate, concave, entire bractece, en- 

 larging upwards. Calyt campanulate, persisting, closing when the co- 

 rolla falls, S-cleft, segments ovate, acute, red, green at its base. Corolla 

 white, campanulate, 5.toothed, teeth reflected, often jjartially tinged red 

 on the outside. Stamens 10, included, rising from the base of the°corolla 

 and falling with it; filaments subglabrous, dilated at the base, connivent; 

 anthers attached by their backs near the base, brown-yellow, oblong, ob- 

 tuse at both ends, bilucular, opening by two ])ores at the apex, without 

 beaks. Pistil rather longer than the stamens ; stigma large, cajjitute ; 

 style short, straight, stout ; gernien round, 5-lobed at the apex, greeii ; 

 ovules very numerous, placed round a 5.1obed central receptacle. 

 APRII, JUNK 1831. V 



