GRAMINA. 
165 
SPECIES VII.— B ROMUS SECALINUS. Linn. 
Plates MDCCC. MDCCCL 
Serrafalcus secalinus, Bah. Man. Brit. Bot. ed. vi. p. 421. Gren. & Godr. Fl. de Fr. 
Vol. m. p. 588. Farl. Fl. Ital. Vol. I. p. 338. 
Biennial or annual. Stem nearly glabrous, except on the knots. 
Leaves thinly pubescent, deep green; sheaths spUt at the apex only, 
glabrous, or pubescent with very short reflexed hairs. Panicle erect 
in flower, and (especially in luxuriant examples) more or less 
secundly-drooping in fruit, simple or slightly branched, rather lax. 
Rachis with distant nodes. Panicle-branches 3 to 6 (rarely only 2) 
at the lower nodes of the rachis, unequal, a few of the longest with 
from 2 to 5 spikelets, unbranched and bare of spikelets for half their 
length, not more than the length of 2 intemodes, the shortest and 
those in the upper part of the panicle reduced to pedicels, scabrous 
or hispid-pubescent, ascending -erect in flower, arching-ascending in 
fruit. Pedicels longer than or about as long as their spikelets. 
Spikelets erect in flower, drooping in fruit, at first elliptical-lan- 
ceolate and acute, ultimately oval-ovate and sub-obtuse, 5- to 15- 
flowered, green. Glumes unequal, the inner or larger one extending 
half way to the apex of the third floret.* Florets imbricated in 
flower, but separate in fruit, from the margins of the lower pales 
becoming involute. Lower pale with the margins regularly curved 
from the base to the apex, 5-ribbed, notched at the apex, glabrous 
or pubescent, with narrow scarious margins. A^vn from the bottom 
of the notch of the pale, straight or flexuous, very rarely bent out- 
wards, varying from a mere mucro to as long as the pale. Upper 
pale as long as the lower. 
Yar. a, genuinus. 
Plate MDCCC. 
Beicli. Ic. Fl. Germ, et Helv. Vol. I. Tab. CXCIV. Fig. 353. 
Billot, Fl. Gall, et Germ. Essicc. No. 1093. 
B. secaHnus, Schrad. 8m. Engl. Bot, ed. i. ^o. 1171, and Engl. Fl. VoL I. p. 154. 
Sheaths glabrous, or nearly so. Panicle-branches scabrous. Spike- 
lets glabrous. Awns erect. 
* i.e. tite second floret on tlie side opposite to it. 
