348 Dr Graham's Descriptio7i qf'Nezv or Rare Plants. 



den of Mr Neill at Cauonmills, from seeds collected by Mr Drummond 

 between Norway House and Canada, and flowered freely in August. 

 When very luxuriant in cultivation, the stem is ascending and less 

 hairy, and very rarely it is continued through the capitulum. Even 

 the native specimens vary in the degree of hairiness, and the num- 

 ber and depth of the serratures of the leaves, which also differ in their 

 breadth at the base, and are more or less elongated. The appearance of 

 the less vigorous cultivated plants exactly resembles the few which are 

 in Mr Drummond's herbarium. 



Pentstemon glaucum. 



P. glaucum ; caule herbaceo, subglabro ; foliis glabris, glaucis, radicali- 

 bus lanceolatis in petiolam attenuatis integerrimis, caulinis lineare 

 lanceolalis acuminatis parce serrulatis ; pedunculis elongatis, decussa- 

 tis, multifloris, pedicellisque compositis calvce corollaque puberulis, 

 filamento sterrilo barbato. 



Descriptiox Stem erect, glabrous below, slightly pubescent towards 



the top. Leaves all glabrous, glaucous ; root-lea\'es lanceolate, atte- 

 nuated at the base into petioles shorter than themselves, quite entire ; 

 stem-leaves ovato-lanceolate or linear-lanceolate, acuminate, dilated at the 

 base, and stem clasping, distantly serrulate, smaller upwards and passing 

 into ovato-acuminate entire bractete at the base of the peduncles. Inflo- 

 rescence, as is common in the genus, axillary peduncles collected in form 

 of a panicle at the extremity of the stem, peduncles elongated, as well 

 as the compound filiform pedicels calyx and corolla glanduloso-puberu- 

 lent. Bractem ovate, acuminate, gradually becoming smaller from the 

 leaves, and two placed opposite to each other at each subdivision of the 

 l)eduncle. Calyx 5-parted, segments ovate, acute, spreading, the up- 

 per the broadest and shortest. Corolla rather pale lilac above, and at 

 the apices of its lobes, yellow with purple veins below ; upper lip of two, 

 lower lip of three segments ; upper surface of lower lip with long yellow- 

 ish hairs. Stamens included ; filaments ascending ; anthers cordate, lobes 

 spreading, purple on the outside, whitish within ; barren filament dilated 

 at its base, and adhering to the upper side of the corolla, above which 

 it dips to the lower side of the corolla, along which it is laid, densely 

 covered with yellow hairs on its upper side for more than half its length. 

 PisM rather shorter than the barren filament ; germen conical ; style 

 straight ; stigma small, entire. 

 The seeds of this species, which flowered at the Botanic Garden during 

 the greater part of the summer, were received from Mr Drummond af- 

 ter his return from the second journey to British North America. 



Pentstemon procerum. 



P. procerum ; caule herbaceo, ramoso, glabro ; foliis ovato-oblongis, in- 

 tegerrimis, pedunculis glabris, muliifloris, axillaribus terminalibusque ; 

 floribus congeslis : calyce glabro, segmentis subulatis membrano lace- 

 rato alatis. 

 Pentstemon procerum, Douglas, MSS. 



Description Root perennial. Stem (a foot high) ascending, subangular, 



smooth, green, at the base often red branching and twiggy. Lower 

 leaves (1^ to 2 inches long, C to <J lines broad) bright green, quite en- 

 tire, decurrent upon petioles half their own length, opposite, decus- 

 sating, folded forwards at the middle rib, which is strongly keeled 

 behind, glabrous, shining, veined, veins oblique. Upper leaves (2^ 

 inches long 9 incl es broad) similar to the lower, but longer, less at- 

 tenuated at the base, sessile, stem clasping. Peduncles (the lower 2 

 inches long, the upper almost a wanting) adpressed, many -flowered, 

 becoming gradually shorter upwards, and the leaves degenerating into 

 bractese the whole inflorescence acquires the appearance ot a dense, termi- 

 nal spike, slightly verticelled. Flowers purple, striated, collected into 



