Cladium.] CXLIII, CYPERACEA. 401 
amongst which the Spiralen one is common over a great part of the generic area ; 
but the more numerous section Bawmea is p robably limited to the Old Mid and 
is chiefly Austral Seg Of the 15 Anstraliae species five are also in and 
and one or two of these extend to some of the Pacific islands, the other ten emm 
all to be endemic 
Secr. I... Bucladium.—Panicles densely corymbose. Outer wey glumes about 4. 
Vicivers 2, lor rarely both fertile, and usually no terminal empty glume 
Stems tall, leafy throughout, Leaves fat . . . . . . 1, C, mariscus. 
aumea. — Panicles loose or thyrsoid or narrow. Outer empty glumes 
to 3, and usually a small terminal glume either empty or with a rudimentary flower. 
i ‘chiefly at the base of the stem or no ond 
mu 2- n. 3-flowered (flowers all apparently perfect 
ile). 
Indie 6 ft, (flat P). Panicle AH — with very 
erous spikelets . . . ; . 2. C. insulare. 
Leaves terete, transversely se ptate. Panicle v very ‘large, 
somewhat drooping. Spik yd very, numerous but 
3. C. articulatum. 
8C . 4, C. arthrophyllum. 
Leaves terete, continuous aei septate. Panicle 
erect, rigid. Spikelets densely clustered. Glum 
ciliate 
5. C. glomeratum. 
Leaves vertically flattened. — Stems. much flattened. 
M not ciliate. "Western species. 
Stems 3 to 4 ft, Leaves broad. Panicle often 1 ft. 
6. C. Preissii, 
laxum. 
ong. . 
to2ft. Leaves narrow. ` Panicle 2 to £n U 
Spikelai 1- idw ered. 
Panicles thyrsoid or loosely branched, erect. Leaves few 
long and erect, gms numerous. 
snus raat 2 to 3 lines broad. Panicle long and 
loose . s . 8. C. riparium, 
Leaves terete, about 1 line broad. Panicle t thyrsoid . 9. C. teretifolium. 
Leaves angular or r flat. = a Rater ges midrib, 1 to 2 
à lines EX UN Paniele 
anicle narrow, alm ie aust or ir with fow erect branches. 
Le Pikelote fe w. emer ooth and 
vidissi wien but narrow. Stem under 
1 ft 
_ 
e 
* 
C. tetraquetrum. 
. 11. C. schanoides., 
Stems s leafless e xcept ‘sho ort. points “to the sheaths, 
y above 1 ft. high, rarely intermixed with a 
fw; bern eatis leaves. 
Floweri lum. pu twice as a ee f. as the 
tei J n . 12. €. Gunnii. 
: "o io 2 ft. ju EU uus QS. Peer 
- fBtemsstout,3 ft. high or more . . . . . . . 14 C. vaginale 
ears erect, terete pim Stem $ to 14 feet . . . . 15 C.elynanthoides. 
the axi 
Leaves and iili involute margins dme Long subu- 
late points. Nut narrow triquetro ch See — 
VOL. vir, 2D 
