46 
The large Tilia-like leaves of this Rubus with their white 
under-surfaces make it a distinct and striking species. 
Rubus corchorifolius, Linn. f. 
Although described by the younger Linneus in 1781, this 
raspberry appears never to have been brought into cultivation until 
Mr. Wilson introduced it from Central and Western China, where 
he found it at altitudes of about 7500 feet, inhabiting open 
thickets. 
It is a shrub of erect habit, vigorous plants in their second year 
making stems 6 feet high, which are terete, covered with fine down 
and armed with straight prickles up to 4 inch in length. The 
leaves are dull green, simple, ovate-cordate in main outline, but 
usually 3-lobed on the barren stems, acuminate, up to 7 inches in 
length, half to two-thirds as wide, coarsely toothed, finely pubescent 
beneath, and furnished with hooked prickles on the petiole and 
midrib. The flowers are white, solitary, and borne on short lateral 
twigs. Fruit bright red, large, and described by the collector as 
having “a delicious vinous flavour” and ripe in May and June. 
The Kew plants were raised from seed received at the end of 
1907 from Harvard University. 
' Rubus coreanus, Miquel. 
The most attractive features of this species are its erect, stout 
stems covered with a beautiful blue-white bloom, and its lustrous, 
handsomely-cut, pinnate leaves. It is a valuable addition to 
brambles with blue-white stems. 
The plants at Kew, which passed through the winter of 1908—9 
quite unaffected by cold, were raised from seed, presented late in 
1907 by Harvard University, which had been collected by Mr. 
Wilson in Central and Western China. 
During the summer of 1909, their second season, these plants 
produced stems 8 feet high, erect, with arching branches, and 
armed with stout spines up to } inch in length, not hooked. The 
leaves are pinnate, composed usually of seven leaflets, the lateral 
ones of which are ovate or broadly elliptic and from 14 to 3 inches 
long, cuneate at the base, sessile, coarsely serrate except towards the 
ase ; when young there are silky hairs on the parallel veins of 
both surfaces. The terminal leaflet is much larger and broader, 
often 3-lobed, and truncate or subcordate at the base. The common 
petiole is armed with hooked prickles. 
is Aubus is evidently a vigorous, hardy species. Mr. Wilson 
found it at elevations of 6000 feet and says its fruits vary in colour 
from red to black, are ripe in July, but small and worthless. 
R. hupehensis, Olver ; Hooker’s Icones Plantarum, t. 1816. 
(R. Swinhoei, Hance according to Focke in Bibl. Bot. 72, p. 43.) 
This is a prostrate species with dark, terete stems covered thinly 
when young with a grey flocculence, and armed with very short 
decurved prickles. The leaves are simple, oblong-lanceolate, and 
rom 3 to 44 inches long by about 14 inches wide, with acuminate 
tips, and a rounded base ; the lower surface is covered with a pale 
grey tomentum, the margins are serrate, and the petiole about } 
inch long. The flowers have not yet been seen in this country but 
they do not appear to be in any way attractive. The inflorescence 
is a short terminal raceme carrying in a wild state three to seven 
