(425) 
201 
Waldpflanze. Im Hügellandc, im Schwarzwald auch in der niederen Bergregion. In Westdeutsch- 
land vom südlichen Schwarzwald bis an den Niederrhein verbreitet; häufig in den belgischen Ardennen; 
in England anscheinend sehr zerstreut (von mir unter Führung von A. Ley unweit Hereford gesehen). 
Formae R. obscur o affines vel, si mavis, Rubi obscuri 
(spec, collect.) subspecies. 
Subspeciebus, quae admodum constantes videntur, intercurrunt formae ambiguae omnes limites 
perturbantes. 
R. nibicLindiis P. J. Muell. et Wirtg. Hb. Rub. Rhen. ed. 2 no. 39 (1858), Focke Syn. Rub. Germ, 
p. 310. (1877). 
Aculei aciculati, vulgo inferne parum dilatati; inflorescentia brevis saepe patula; setae glanduli- 
ferae tomentum superantes saepe crebrae; sepala in fructu immaturo patentia, demum erecta. — 
Rheingebiet. 
R. erythroslemon Favrat Bullet soc. Vaud. XVII 530 (1881). Forma lalifolia verosimile exclu- 
denda. 
Aculei pauci, robustiores quam in R. rubicundo; foliota subtus tomentoso-canescentia; sepala 
post anthesin laxe reflexa. 
Südl. Schweiz (Waadt), Norditalien (Como). 
R. insericatus P. J. Muell. in Fl. (B. Z.) XLI 184. (1858.) XLI 1233. Focke Syn. Rub. Germ. 309. 
Aculei tenues aciculati; foliota saepe ovata vel ovato-oblonga, supra et subtus laete viridia et 
pilis subsericeis micantia; inflorescentiae angustae ramuli breves saepe uniflori; sepala in fructu 
reflexa. — Glandulae stipitatae crebrae, plerumque sub indumento villoso occultae. 
Rheingebiet, westliche Schweiz. 
Formae h y b r i d a e R. i n s e r i c a t i. 
Describuntur a Schmidely Bull. soc. bot. Genève formae R. insericati hybridae, seil. : 
R. insericaliis x macrostemon 1. c. pag. 83. 
R. insericaliis x pilocarpus 1. c. pag. 153. 
E speciminibus compluribus, quae vidi, unum ad R. decorum pertinere suspicor. 
R. insericaliis x Villarsianus 1. c. pag. 143. 
Formae multae inter R. vesliluni et R. rosaceuin vel R. Lejeunei ambigentes, verosimile hybridae 
vel hybridogenae, a P. J. Mueller olim secundum ramos exsiccatos a Lefèvre missos in Pollich. XVI 
descriptae sunt, inter quas nominandae: R. excavatus (p. 135 n. 71), grypoacanlhus (p. 133 n. 69), opulenlus 
(p. 136 n. 72), Iremulus (p. 138 no. 73), omnes formae rarae vel rarissimae; praetera teste Boulay: R. ab- 
scondiliis (p. 167 n. 106), forinidabilis (p. 128 n. 65), fiilcraliis (p. 178 n. 116), Miillerii (p. 180 n. 118, 
hie, quamvis in unico loco solum repertus, a Boulay seorsim describilur), relrodenlatiis (p. 168 no. 107), 
rufescens (p. 152 no. 96, a Boulay descriptus), analogus (p. 232 no. 173), flavescens (p. 195 no. 131), 
obcunealus (p. 196 no. 132). His formis addatur R. sericalus P. J. Muell. in Flora (B.Z.)41 p. 184 (1858), 
an quoque Pollich XVI p. 125? 
Formae R. obscuro affines unico charactere, e. g. inflorescentia angustà vel divaricata, sivc 
foliolis ellipticis vel ovatis, sive sepalis in fructu reflexis vel ercctis diversae, in subspecies naturales 
disponere non licet, quia omnes gradus intermedii occurrunt. 
R. decorus P. J. Muell. in Fl. (B. Z.) XLI 151. (1858). 
R. obscunis D. decorus, Focke in Aschers, et Graebn. Syn. mill. Fl. VI 554. 
R. criientalus P. .J. Muell. Pollich. 16. 294 (1859). Wirtg. Hb. Rub. Rhen. I 136, II 3(i. Focko 
Syn. Rub. Germ. 312. 
R. Fuckelii Wirtg. Fl. (B. Z.) XLII 235 (1859); Focke Syn. Rub. Germ. 306 baud eerie dislin- 
guendus videtur. 
Blbllotheca botanica. Heft 83. 2ti 
