2558

SUPPLEMENT.

from 5 to 7, short, obtuse ; the mar-gins revolute and occasionally toothed.

Petioles very short, slightly chan-neled above, sheathing at the base.

Stipules adherent; the free apicessubulate, hairy, green, shorter thanthe adherent portion. Flowers ter-minal, solitary; when in the budstate, exactly like those of Rd sa. Pe-duncles extremely short, cylindrical,thickened towards the apex, copiouslydowny and glandular, and furnishedat the base with a single, linear, acu-minate, channeled, glandular bractea.

Calyx turbinate, hollow, copiously downy and glandular; tube glabrous,shining and green within ; limb 5-parted, spreading; segments ovate, acumi-nate, entire. Petals 5, obovate, double the length of the calycine segments,of a rich lilac. Stamens 72, disposed in many series. Filaments capillary,glabrous, white, pink at the base. Anthers cordate, yellow, bilocular; thecells parallel and opening lengthwise. Ovaria 14, free, arising from thecentre of the torus, which is seated at the bottom of the calyx; oblong,clavate, copiously silky. Styles continuous, short. Stigmas terminal,simple, yellow, minutely papillose. Achenia about 8, turbinate, silky,crowned by the persistent feathery styles, which are ljin. long. ‘ We haveseldom,’ Professor Don remarks, ‘ had an opportunity of laying before ourreaders a subject of equal interest and beauty with the present, which is notonly a new species, but a new genus, to our gardens. It was raised by ourzealous friend Mr. Thomas Blair, gardener to Mr. Clay at Stamford Hill,from seeds picked from a specimen collected by Captain Colquhoun in theuplands of Mexico. It promises to be sufficiently hardy to endure ourwinters in the open air; and, as it is an evergreen shrub, with a peculiarhabit, and large showy blossoms resembling a small rose, it must be regardedas the most valuable addition made to our gardens for some years past.’The genus was originally founded by Professor Don, in the Linmxan Trans-actions, vol. xiv., on another species, collected in the same country bySesse and Mocino, and which is distinguished from the present one by itstripartite leaves, with entire lobes. Professor Don considers the genus tobe exactly intermediate between Dryas and Purshio, differing from theformer in the quinary arrangement of the floral envelopes and definiteovaria ; and from the latter, in the more numerous achenia, crowned by thepersistent feathery styles.”

Sect. IV. .Ro'seje.

Rosa. Page 750., add to the first paragraph : “ The Fungi are: Spine'ria Dothi-dea Mmig., also on the ash; S. saepincola Fr., jErysiphe pannosa Wallr.,Coryneum marginatum Nees, Cladosporium fuscum Lk .; NaemasporaRoses Desm., on the fruit; Fusarium fructigenum Fr., Sporotrichumelaeochroum Fr., on the leaves; Perisporium spelreum Fr., Aste-roma radiosum Fr., Septaria Rosee Desm.-, Aregma speciosum Fr.,on R. corymbifera; A. mucronatum Fr., syn. Puccinia Rosed Grev.,t. 15., C/redo Roses Dec., U. pinguis Dec. — M. J. B.”

R. mici-opliylla. 751., add to the end of the paragraph headed “ Spec. Char,,#c. “ There is a variety in the Horticultural Society’s Garden calledR. m. alba.”

R. alpina. 756., add to “ Varieties —

“ * R. a. 15 speciosa Hort., Drummond’s Thornless, was raised by Mr.

Drummond, in the Cork Botanic Garden.”