Box 15, Folder 11: Grass like Plants of Wisconsin, 1855

Genus XI Rhynchospora Vahl.

(Greek rhynchos a snout or beak, and spora, a seed).

Spikes ovate mostly few-flowered; scales loosely imbricated, lower ones smaller and empty, [and] from 1 to 3 [of the others] above with perfect flowers, the uppermost usually imperfect; perianth of 6 or rarely more plumose or rough bristles; stamens mostly 6; styles 2-cleft; achenium crustaceous, lenticular or globular, crowned with the dilated and persistent base of the style (tubercle) which is smooth or transversely wrinkled. -Culms more or less triangular, simple, leafy; the small spikes in terminal and axillary clusters, cymes, or heads.

46. Rhyncospora Alba Vahl.

Syn. Schoenus albus, Linnaeus.

Leaves almost bristle-form; spikes several, whitish, corymbed-clustered, lanceolate; achenium smooth, lenticular, ovoid, narrowed at the base, shorter than the bristles,-a little longer than the beak-like, slender tubercle; bristles 9 to 11 denticulate; stamens usually two. Culms 12 to 20 inches high, slender. Flowers in July.

Bogs &c swamps. Ohio & Michigan. Extends to the southern states, and east to N. England.

47 Rhyncospora Capillacea Torrey

Syn. Schoenus setaceus, Muhl.

Leaves setaceous; spikes 3 to 6 in a terminal clustre, and mostly one or two on a remote axillary peduncle, oblong-lanceolate; achenium smooth or very obscurely wrinkled, lenticular, oblong-ovoid, stipitate, about half the length of the 6 stout, denticulate bristles, and twice the length of the lanceolate-beaked tubercle. Culms 6 to 9 inches high, slender.

Bogs and rocky river banks. Ohio and Michigan. Extends East to N. York.

[47] 48 Rhyncospora Glomerata Vahl.

Syn. R. capitellatus Vahl. Schoenus glomeratus Linn. S. capitellatus Michx. S. capitatus Pers.

Leaves linear, flat; spikes numerous in distant clusters or heads, [ob]ovoid-oblong; achenium smooth, lenticular, obovate, margined, narrowed at the base, as long as the lance-awl-shaped flattened tubercle; bristles barbed downwards, as long as the tubercle. Culms 1 to 2 feet high. Flowers in August.

Low grounds. Ohio and Michigan. Extends to the southern states.

Genus XII Cladium P. Browne

(Greek klados a branch, or twig)

Spikes ovoid or oblong, of several loosely imbricated scales, the lower ones empty, one or two above bearing [umbue] a staminate or or imperfect flower, the terminal one perfect and fertile; perianth none; stamens 2; style [2 or 3 cleft]; deciduous; 2 or 3 cleft, the divisions often bifid or trifid; achenium ovoid or globular, somewhat corky at the summit, or pointed, without a proper tubercle.