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



Mr Drummond in February 1828, after his return from the last expe- 

 dition under the command of Captain Franklin. A specimen presented 

 by Dr Richardson to Professor Jameson shews tliat it is the plant which 

 he gathered in the first exjiedition, in the barren ground between Point 

 Lake and the Arctic Sea, under the name of D. muricella. Flowers in 

 April. 



Eryngium comosum. 



E. comosum ; foliis omnibus bi-pinnatitidis, apice reflexis laciniis sub- 

 trifidis spinnsis, j)roximis minoribus ; caule trichotomo ; involucris 

 trifidis patentibus ; capitulis cylindricis, concoloribus, folio inciso co- 

 rinatis. 

 Eryngium comosum, De la Roche. 



Description Stem [\\ foot high) erect, obscurely angled, slightly 



rough, red at its base, above green, twice trichotomous, there being at 

 each division a pair of opposite leaves. Radical leaves petioled (with 

 the petiole G inches long), spreading, pale green, and marked on the back 

 with white shining ribs, Avhich are parallel, and rarely branched, twice 

 pinnatifid, bent back at the apex ; rachis and petiole broadly channelled, 

 segments awl-shaped, rigid, spinous, erect, smaller towards the plant, 

 petiole red on the inside towards the base. Stem leaves like those from 

 the root, but sessile, alternate. Branches axillary, trichotomous. Pe- 

 duncle (1-1 4" inch long) terminal, as well as the branches with many 

 obscure grooves. Involucrum green like the leaves and upper part of 

 the stem, spreading at right angles, witli one or two spreading teeth 

 above the middle, Capitulum cylindrical, (9 lines long, and 4^ broad) 

 green, and crowned by a green incised leaf, whose segments are 

 erect. Chaffs awl-shaped, green, concave colourless and winged at 

 the base, subexserted. Calyx segments erect, ovate, blue, termina- 

 ted with a rigid white prickle. Petals lanceolate, cleft at the apex, 

 blue, white along the middle, strongly keeled on the inside, equal in 

 length to the calyx, but being involute they seem shorter, edges bent 

 back, erect. Stamens somewhat spreading ; filaments twice the length 

 of the calyx, slightly tapering, purplish towards the base ; anthers ob- 

 lique, ovate, bilobular, bursting at the sides, greenish ; pollen yellow. 

 Stigmata minute ; styles longer than the calyx, but shorter than the sta- 

 mens, slightly spreading, colourless ; germen compressed, the commis- 

 sure being in the shortest diameter, covered with a dense white tomen- 

 tum. 

 This species was raised from seed sent from Regla in Mexico to P. NeiU, 

 Esq., and flowered in the open air in the beginning of the present 

 month iu his singularly interesting collection at Canonmills, and also 

 in the Roval Botanic Garden, a seedling plant having been received from 

 Mr NeilL 



Mitel la pentandra. 



M. pentandra ; sca))o erecto piloso ; floribus pentandris, petaUs pectina- 



tis ; foliis cordatis, lobatis crenato-serratis, setaceo-pubescentibus. 

 Mitella pentandra. Bat. Mag. 2933. 



Description Root perennial, fibrous. Scape erect, elongated, sparingly 



hispid, more so towards the top. Leaves all radical, cordate, undulate, 5- 

 lobed, serrato-crenate, sparingh' hispid, i)aler behind ; petioles longer than 

 the leaves, rather more hispid, channelled ; leaves and petioles together 

 scarcely exceeding a quarter of the length of the scape. Flowers in a loose 

 spike ; pedicels very short, at first S]n-eading, afterwards erect. Calyx 5- 

 cleft,aswellasthepeaicelsglanduloso-pubescent,segmentsacute,reflexed, 

 herbaceous, per.-^isting, tube adnr.te to the germen. Petals 5, yellow, pecti- 

 nate, reflected, segments 3 or 4 on each sitle. Stamens 6, opposite to the pe- 

 tals, and alternate with the segments of the calyx ; filaments very short, 

 adnate with the inner surface of the calyx, and connivent from the base 

 of the petals ; anthers sliort, blunt, cordate, bilobular, yellow, the lobes 



