480 CYPERACEAE. [Gahnia. 
Linnaea, XX XVIII, 240. — B. glomerata, Nees (non Gaud.), in Linnaea, 
IX, 298. — Trachyrhynchium iridifolium, — in herb. Meyen. 
In the woods of the middle region on all islan 
10. VINCENTIA, Gaud. 
As in Baumea, but the spikelets 2—6-flowered, the ovary <— achene 
eineat triquetrous, winged, the wings decurrent along the s 
A genus of 6 species, spread ov - fe mae e425 the Mascarene Islands, New mee the 
Hawaiian "aan, Chili and Bra: 
1. V. angustifolia, Gaud. in Bot. Voy. Freyc. p. 417. — A stout plant, the 
compressed stem 3—4 ft. high, smooth at the somewhat obtuse angles. Leaves 
as in Baumea Meyenii, but smooth and broader (!/2—1‘). Inflor. as before, 
but the alternate curvatures of the smooth plano-convex rhachis less 
pronounced and the supporting leaves of the lower divisions reduced to 
long- sheathing short-bladed bracts; the divisions or panicles fuller and 
roader, densely many-branched; the whole forming a large interrupted 
thyrsus. Spikelets 5—9 in is eine, ave ferruginous, almost black, a8 
are the shorter bracteoles, plano-convex, 3!/2,—4” long, 3—5- flowered. 
Glumes ordinarily 7, subdistichous, the lowest 1 or 2 empty, the iepeell 
one tabescent, the fertile ones 3“, coriaceous, ovate, rather obtuse, convex- 
carinate with smooth keel, blackish, but under transmitted light deep red 
tamens reddish, 
Style long. exserted, 3-cleft one third of its length, the base slightly 
thickened and puberulous. Achenes ae to Boeckeler) elliptico- 
be yellow, with a 3-win a8 stipes ihe slender conico- see beak 
, rust-brown. — Hook. & Arn. in Bot. Beech. p. — Kunth, 
- num. PL Il, 314. — Beklr., in Linnaes, XXXVIIT, 249. 
Woods of the sadbilio ie zone on all isla rs a great resemblance to the last species, 
but can easily be distinguished by the pny perme fuller and broader panicle. 
11. GAHNIA, Forst. 
Spikelets 1-flowered, or with a second male flower below the fertile 
e. Glumes imbricate all round, convolute or clasping at the base, the 
outer ones empty but the uppermost of these longer and stiffer than all 
others. Perigonial scales present in some species. Stamens 6—3, the 
filaments very long and persistent. Style trifid, the subulate branches 
harsh involute leaves. Spikelets densely clustered in compound sp spikes, 
which are arranged in a narrow terminal leafy panicle. 
