Page:Journal of botany, British and foreign, Volume 9 (1871).djvu/394

 366 RUBUS ADSCTTUS AND K. MUTABILIS.

5. Folia exsiecata, non nigricaiitia nee reflexa, crassiora quam in S. nigri-

cante, Fr., sa^pe glaberrima. Stipulfe minores ; pedicellus et stylus elongatus, pedicellus nectariiim bis terve superans. Ovaria glabra vel pilosa, vel etiam tomentosa.* [Bicolores, Borr.) iS. hiculor, Elirh., etc.

6. Friitex nanus, ramosus. Folia lata, foliis 5. caprece non valcle absiniilia.

Pubes araelinoidea. Amenta terminalia ; ovaria glabra ; necta- rium unicuni. {Hastata, Borr.) S. lanata, L.+

��RUBUS ADSCITUS, Genev., AND R. MUTABILIS, Genev. By T. R. Archer Briggs.

Throuali the exiiniintitioii of some Continental Rnhi Ijeloiigino- to Mr. Baker's lierhariuni, I am now able to assert tlie identity of one or two well-marked Brambles of the neigliboiirhood of Plymouth, that do not come in well under any of the " liabingtoniansie" of the Lond. Cat., with named Continental forms. The first of these that I shall notice is a plant named R. adscitus by M. Genevier, evidently of the group TUIi- caiiles, which is common in linsliy hedges in low situations, and in damp thickets about Plymouth. It has characters so distinct and well-marked, that I cannot see how those adopting- Professor Babington's views can hesitate to regard it as a species, or those falling in with Mr. Baker's ar- rangement of the Rubi. in Hooker's ' Student's Flora,' fail to call it a sub- species. It agrees so exactly both with M. Genevier's specimens of R. adscitus, and with his description of it in " Kssai Monographique snr les •Ilnbus (In bassin de la Loire, pp. 116-118, that I give a translation of the latter :—

" R. adscittis, G. Genev. Mem. de la Soc. Acad, de M. et L. t. viii. p. .88 ; Tirage a part, l""- Ess. p. 23. R. rosncai/s, Bor. Fl. t. ii. p. 192 (non W. et N.) ; Arron. Not. snr quelques pi. crit. du Morb. ]). 27 (1863). (Comparer avec R. viicatis, God. et Gr., Fl. Fr. t. i. p. 546.

" Stem with rather blunt angles, the surface on the sides flat or slightly fnrrowed, striate, rather stout, rough, hairy, with scattered setae, and nn'- equal, slender, straight, sharp prickles. Leaves 3-nate, often pedate, 4- nate or 5-nate ; petiole flat, furrowed at the base, rough, hairy, slightly glandular, with unequal, declining, or slightly falcate prickles. Terminal leaflet with petiole equal to i or ^ of its length, broadly oval, with broad base, notched, acuminate, or cuspidate ; lateral leaflets with petioles equal to \ or \ of their length, broadly oval, acuminate or cuspidate, entire or slightly notched at the base, much dilated and deeply lobed on the outer side ; all thin, soft, of a light green, with few decumbent hairs above, deeply toothed, lobed, and serrate ; the teeth acide, unequal ; of a bright green below, rough, with nearly decumbent shining hairs, or more or less white-felted, the veins raised, midril)s prickly. Branches angular, flexu- ose, very rough, with few glands ; prickles unequal, slender, small de- clining. Leaves 3-nate ; petiole not grooved, rough, hairy, slightlv glan- didar; prickles uneqmd, sharp, declining, the largest falcate; stipules lanceolate, rough, slightly glandular ; terminal leaflet with petiole equal

describitur quod pi-imo intuitu plerumque facile dignoscitur.
 * Tota facie <*>■. hicolor ab S. 7iigricante, Fr, et atTinibus ejus recedit ; sed aegrei id

t S. Janata cum S. hasiata multa Imbet communia, sed propter amenta sessilia terminalia cousociari ncquit.

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