Page:Flora Australiensis Volume 5.djvu/173

Chenopodium.] XCVI. CHENOPODIACEAE. 161 little cymes in a terminal interrupted spike or along; the short distant branches of a slender terminal panicle, or the lower ones in the axils of the upper leaves. Perianth-segments broad and concave, sometimes closing over and covering the fruit, sometimes smaller and much contracted at the base. Stamen usually 1. Styles short. Seed flat, horizontal, about ½ line diameter, in a very thin membranous Pericarp.

— C. trigonon, Roem. and Schult. Syst. vi. 275; Moq. in DC Prod. xiii. ii. 65.

Queensland. Armadilla, Barton.

N. S. Wales. Paramatta, Woolls ; Namoi river, Leichhardt; New England, C. Stuart.

The habit is nearly that of Rhagodia hastata, but the fruit is never succulent, and the inflorescence rather different. The C. triangulare of Forskähl being reduced by Moquin to C. murale, there seems no reason to suppress Brown's name of C. triangulare for the present species.

Var. stellulatum. Perianth-segments with a rather small concave lamina contracted at the base into a linear stipes (reduced to the somewhat prominent midrib). Leaves of the typical form. — New England, C. Stuart.

Var. angustifolium. Leaves linear-lanceolate or the lower ones lanceolate-hastate. Perianth of the typical form. — To this belong the Queensland specimens and some from New England.

6. C. microphyllum, F. Muell. ''in Trans. Phil. Inst. Vict. ii.'' 74.

A small much-branched prostrate or diffuse plant apparently perennial and more or less mealy-white. Leaves numerous, small, petiolate, ovate rhomboidal triangular or broadly lanceolate, entire, 2 to 3 lines long, hoary or white on both sides or becoming nearly green above. Flowers few together in small rather loose clusters in the upper axils, scarcely forming very short terminal spikes. Perianth very scaly, mealy, the segments concave, shortly united and keeled but not contracted at the base. Stamen usually 1. Seed flat, horizontal.

N. S. Wales. On the Billabong, W. Bissett.

Victoria. Bacchus marsh, F. Mueller; Wimmera, Dallachy.

S. Australia. Near the Barossa Range, Behr. ; Enfield, F. Mueller.

7. C. glaucum, ''Linn. ; Moq. in DC. Prod.'' xiii. ii. 72. An annual, much-branched diffuse and prostrate or decumbent at the base, the stems ascending to 1 ft. or more, glabrous striate and furrowed. Leaves petiolate, the lower ones broadly lanceolate or almost rhomboidal or hastate, coarsely sinuate-toothed, often above 1 in. long, the upper ones gradually smaller narrower and more entire, the uppermost passing into small bracts, all green above and more or less white underneath. Flowers small, nearly glabrous, in clusters or short leafless irregular spikes, the lower clusters or spikes axillary and much shorter than the leaves, the upper ones forming terminal interrupted spikes leafy at the base only. Perianth-segments rather thin, or the keel somewhat thickened, closely appressed on the fruit but not completely covering it. Stamen usually 1 only. Fruits about ½ line diameter, mostly depressed with a horizontally flat seed, but some of the lateral ones occasionally with a vertical seed and the perianth-segments reduced to 4 or 3. — VOL. V. M