ROSACEAE. 123 
Rosa. 
(Family Rosaceae). 
Shrubs, mostly armed with 
prickles, occasionally trailing or 
scrambling: deciduous or excep- 
tionally evergreen. Shoots moder- 
ate, terete: pith relatively large, 
brownish, rounded. Buds rather 
small, solitary, sessile, ovoid, with 
3 or 4 exposed scales, sometimes 
a little above the axil. Leaf-scars 
alternate, low, narrowly and 
shallowly U-shaped or almost lin- 
ear: bundle-traces 3: _ stipule- 
sears lacking. Suckers are usually 
more prickly than the ordinary 
branches, from which characters 
are taken here. 
Winter-character references: — 
Rosa alpina. Bosemann, 44 R. 
arvensis. Bosemann, 44. BR. bal- 
tica. Bosemann, 44. FR. canina. 
Bosemann, 45; Fant, 23, f. 21; 
Ward, 1:201, f. 102; Willkomm, 36, f. 55. WR. carelica. Fant, 
24. R. centifolia. Bosemann, 45. WR. centifolia muscosa. 
Bosemann, 45. R. cinnamomea. Bosemann, 45; Fant, 24. R. 
collina. Fant, 24.. R. coriifolia. Fant, 24. R. gallica. Bdose- 
mann, 44. R.inodora. Fant, 23. R. lucida. Bosemann, 44. R. 
lutea: Bosemann, 45. R. mollissima. Fant, 24. R. multifiora. 
Shirasawa, 250. R. pimpinellaefolia. Bosemann, 44. R. pomi- 
fera. Bosemann, 45; Fant, 24. R. pratincola. Hitchcock (3), 
14, (4), 136, f. 69-70. R. pumila. Bosemann, 45. R. rubiginosa. 
Bosemann, 46; Fant, 23; Schneider, f. 147. R. spinosissima. 
Schneider, f. 147. R. tomentosa. Fant, 24. R. turbinata. Bose- 
mann, 44, 
