Rosace®. 
131 
divided near the base, fascicled.—Yar.: Cal. with or 
without stipitate glands. Shoots with fairly similar prickles 
or (v. armatus) with numerous, unequal prickles; also 
b. grandiflorus Merc. More robust pis, hardly pruinose ; fls 
very large. — Everywhere. 5 . . csesius L. 637. 
— Ls, at least the younger ones (standing highest in the panicle) 
almost always gray-tomentose underneath. Shoots 
cvlindric or angular, gen. slightly pruinose and with 
stronger prickles than in the last. Seps erect or spread¬ 
ing on the fr. Carpels glabr., rarely pubescent. Dru¬ 
pels not pruinose, shining or more often dull, gen. 
more or less suppressed. Branches of the inflorescence 
less fascicled and seps often more shortly acuminate 
than in the last.—Hedges, abundant near dwelling houses. 
5, early but lasting until the autumn 
dumetorum Weihe. 637a.*) 
Glandulosi. 
7. Stas gen. not numerous, sometimes almost 1-seriate as 
in R. idseus, at last, directly after the fall of the pets, 
distinctly shorter than the styles ... 8 
— Stas numerous, many-seriate, decidedly as high as, or 
higher than, the styles ..... 18 
8. Styles red, at any rate below . ... 9 
— Styles greenish or white ..... 12 
9. Ls, at least the young ones, slightly gray-tomentose 
underneath. Shoots rather angular. Seps, on the fr., ap- 
pressed or reflexed. Comp. R. saltuum 21. 
— Ls green underneath. Shoots gen. cylindric. Seps, on the 
fr., erect or appressed ...... 10 
10. Shoots remarkably slender, poor in prickles. The large 
prickles varying little, bent. Stip. glands often rather 
rare, without much colour. Carps pubescent.—Lucerne. 7 
gracilicaulis Grml. 638. 
— Shoots stronger. Prickles and stip. glands very abundant, 
the former very unequal, the latter red or red-brown 11 
11. Prickles fine, straight. Some of the stip. glands very long. 
Panicle with erect branches. Carps glabr. R. GUintheri 
Focke p.—Lucerne, Muri, Canton Aargau. 7 
coloratus Grml. 639. 
*) It is possible to distinguish: 1. Hybrids with the species which have 
similar prickles and no Stipitate glands (especially with bifrons and ulmi- 
folius); stip. glands rare or 0 ; not rare. These, the second parent stem being often 
difficult to determine, may be united under the collective name of dumetorum 
Weihe;—2. with the species which have stip. glands; apparently rare;— 
3. with tomentosus, easily recognised by the microscopic stellate hairs on 
the ls ; see R. tomentosus. 
