208 Mr. J. E. BrcneNo's Observations 
J. culmo nudo tereti, paniculá terminali, involucro diphyllo spi- 
noso, capsulis subrotundis mucronatis. Fl, Brit. 374. Engl. 
Dot. xxiii. 1614. 
J. maritimus, culmo nudo apice bivalvi, paniculâ terminali subum- 
bellatà, capsula calyce duplo longiore. Lamarck Encycl. iii. 
p.258. Flor. Fran. iii. 162. 
J. culmo subnudo tereti mucronato, paniculá icti ls involucro 
diphyllo spinoso. Sp. PI. 463. Huds. 148. With. 346. 
J. pungens, sive acutus capitulis Sorghi. - Bauh. Hist. ii. 520. 
Moris. s. viii. t. 10. f. 15. 
J. maritimus capitulis Sorghi. Park. 1193. 4. 
J. acutus capitulis Sorghi. Bauh. Pin. 11. Raii Syn. 431. 
Angl. Acure Rusu. Sea Rush, Great sharp Sea Rush, Prick- 
ing large Sea Rush. | 
In arenosis maritimis, precipue cumulis, rariüs. 
Peren. July. 
Root fibrous, running deep into the sand. Stem three feet high, 
erect, straight, simple, leafless, cylindrical, even, terminating 
in a very sharp and rigid point. Leaves like the stem, but 
smaller and shorter. Panicle lateral, compound, many-flowered, 
first branch the longest. Bracte membranous, and dilated at 
the base, very pungent. Flowers clustered. Calyz-leaflets ovate, 
obtuse. Capsule broad-oval, somewhat three-sided, mucronate, 
shining, three-celled; each cell many-seeded. Seeds ovate, 
attached to the dissepiment, shining: Coruncle elongated at 
each end, 
This plant and the following, though separated by the old bo- 
tanists, have been considered as the same species by Linnæus 
and many of his disciples. The character first applied by La- 
marck—capsula calyce duplo longiore—is excellent; and: by ob- 
serving 
