Dr Graham's Description of Nexv or Rare Plants. 349 



bracteate capitula upon the top of the peduncle ; bracteae subulate, en- 

 tire, green, one at the base of each pedicel, and longer than it. Pedicels 

 of equal length, round, smooth, green. Calyx segments green, subulate, 

 longer than the pedicels, bordered to their middle by a colourless, lace- 

 rated, obcordate membrane. Corolla (5 lines long) drooping, plicate, 2 

 upper segments erect, acute, 3 lower subequaL, spreading, obtuse, hairy, 

 and white on their inner surface near the base ; every where else the 

 corolla is glabrous. Stamens included ; filaments smooth, curved, colour- 

 less, the two next the sterile stamen shortest, and yellow at the base ; 

 anthers dark, lobes spread very wide ; pollen white ; sterile stamen as 

 long as the longest filaments, laid along the lower side of the corolla, 

 purplish, nearly straight, at its apex spathulate, and having on the up- 

 per side a tuft of orange hairs, decurrent for a very little way only. 

 Stigma small, simple. Style shorter than the stamens, purplish, slightly 

 compressed, and grooved on eacli side near the germen. Germen ovate, 

 subcompressed, green, i)urple at the apex, bilocular. Ovules very nu- 

 merous, obovate, mutually impressing each other, attached to a'large 

 receptacle projecting from the centre of the dissepiment into each locu- 

 lament. 

 This very handsotoe species oi Pentstemon was raised at the Botanic Gar- 

 den, Edinburgh, from seeds gathered by Mr Drummond. It was also 

 found by Mr Douglas on the north-west coast of America, and received 

 from him the MS. name here adopted, as I find from a specimen sent 

 to Dr Hooker, though no such species appears in the list of his Pentste- 

 mons, published in this month's number of the Botanical Register. It 

 flowered in the Botanic Gardens of Edinburgh and Glasgow in June 

 last. 



Saxifraga ferruginea. 



S. ferruginea ; scapo glanduloso-villoso, paniculate, ramulis divaricatis, 

 inferioribus capitatis ; foliis subcarnosis, elliptico-ovatis, planis, serra. 

 to-crenatis, infra ferrugineo-toraentusis, supra glabris, petiolatis ; pe- 

 talis calycem superantibus, stamina sequantibus. 

 Description — Scape (7 inches high), covered with a close, short, soft, 

 glandular pubescence, which on the upper part and on the pedicels 

 is tipped with an adhering purple globule, but below is rusty. Leaves 

 CIA inch long, 9 lines broad) all radical, spreading, elliptico-ovate, some- 

 what fleshy, serrato-crenate, flat, dark green, and naked above, paler be- 

 low, and partially covered with loose rusty tnmenlum, decurrent into 

 flat petioles, nearl}' their own length, middle rib strong behind, veins 

 obscure. Panicle terminal ; lower peduncles long, capitate ; upper much 

 shorter, with longer divaricated pedicels. BractecB 3 at the origin of each 

 peduncle, 1 below the peduncle, the others opposite, and arising from 

 its sides immediately above its origin, spathulate, acute, or towards the 

 top linear. Calyx spreading, unequal, sparingly ciliated, otherwise na- 

 ked, wrinkled, pale green. Corolla white ; petals rotundato-ovate, con- 

 cave, spreading, nearly twice the length of the calyx, on short claws, 

 faintly marked with a middle rib. Stamens inserted into the receptacle, 

 unequal, as long as the corolla ; filaments colourless ; anthers erect, 

 short, cordate, orange. Germen conical, green ; styles at first crossing 

 each other, colourless ; stigmata capitate, smooth, shining. 

 Raised at the Royal Botanic Garden from seeds presented by Dr Richard- 

 son in 1827, and flowered in September 1829. One specimen produced 

 its flowers in a capituhun, sessile in the middle of the leaves. 



Tiarella colorans. 



'V.colorans; foliis cordalis, acute lobalis, dentatis, ciliato-mucronatis; cau- 

 le subapliyllo ; panicula terminal!, floribus nutantibus. 

 Dhscrii'Tion. — Root perennial, fibrous. Stem erect, filiform, panided, 

 pubescent, especially at the lop. Hndical leaves (\\ inch long, 1 inch 



lUI.V OCTOBKR 18^9. A a 



