854 LXV. COMPOSITE. [Chtlwnocephahis. 



compressed, glabrous. Pappus none or short, annular, fringed and very 

 deciduous. — Very dwarf branching or tufted annuals. Leaves radical or alter- 

 nate, entire. Clusters of flower-heads sessile. 

 The genus is endemic in Australia. 



1. C. pseudoevax (resembling an Evax), Steetz in PL Preiss. i- 445 ; 

 Benth. Fl. Austr. iii. 581. A small annual with scarcely any stem, consisting of 

 numerous sessile flower-heads, forming patches of f to lin. diameter, surrounded 

 by a few oblong spreading leaves, J to |in. long, forming as it were a general 

 involucre, with rarely a leaf or two protruding between the heads, there are also 

 immediately under most of the heads or at least the outer ones 2 or 3 linear leafy 

 bracts more or less woolly with scarious tips not exceeding the heads. Heads 

 ovoid-globular, nearly 2 lines diameter, consisting of numerous broad imbricate 

 scarious bracts or scales, very few or even only one of the outer ones empty, each 

 of the others with a floret in its axil not exceeding the bract. Corolla very 

 slender, 4-toothed. Pappus none. — C. Drummondii, A. Gray in Hook. Kew 

 Journ. iii. 178. 



Hab.: Interior, towards Cooper's Creek. 



49. PODOLEPIS, Labill. 



(Involucral bracts stalked.) 



(Scalia, Sims ; Panffitia, Cass.; Scaliopsis, Walp.; Sienissenia, Steetz; Stylolepis, Lehm.; 



Butidoohlamys, Sond. ) 



Involucre hemispherical or rarely ovoid, the bracts imbricate, in several rows, 

 with very thin scarious laminse, not radiating, the outer ones sessile, the inner 

 ones on rigid or scarious stalks or claws. Beceptacle flat, without scales. 

 Florets of the circumference few or numerous, in a single row, female, either 

 ligulate or irregular or with fewer lobes than the disk-florets, which are her- 

 maphrodite, tubular, with 5 or rarely 4 narrow lobes, sometimes slightly irregular. 

 Anthers with fine tails, sometimes very short. Style-branches filiform, truncate 

 or capitate. Achenes nearly terete or slightly compressed, not beaked, glabrous 

 or papillose. Pappus of capillary bristles, simple or shortly barbellate, often 

 slightly uriited at the base. — Annual or perennial herbs, the cottony wool usually 

 very deciduous, leaving the stem and leaves glabrous and smooth. Leaves 

 alternate, lanceolate or linear, very frequently stem-clasping. Flower-heads 

 terminal, pedunculate or rarely sessile, the ray-florets yellow pink or purple, the 

 scarious laminse of the involucral bracts imbricate so as to conceal the claws, in 

 all except P. longipedata. 



The genus is limited to Australia. It passes almost into Helichrysum, differing chiefly in the 

 very thinly scarious, not opaque or petal-like lamina of the involucral bracts. A nearly similar 

 involucre occurs in some species of Heliptenim, but with a plumose pappus. — Benth. 



Involucres ovoid, almost sessile in clusters . , 1. P. rutidocUlamys. 



Involucres hemispherical, pedunculate or rarely here and there almost 

 sessile, J to IJin. diameter (or only 4 lines in P. Lessoni). 

 Laminse of the intermediate involucral bracts much shorter than their 



claws, obtuse or almost acute 2. P. longipedata. 



Laminse of the intermediate involucral bracts as long as or longer than 

 their claws and concealing them. 

 Laminse very acute or acuminate. Ray-florets yellow, 3 or 4-lobed. 



Perennial. Flower-heads large 3. P. acuminata. 



Annual. Involucres under lin. diameter ; bracts acute, smooth or 



slightly rugose 4. P. canescens. 



Laminse of the involucral bracts obtuse. Eay-florets pink, small, 3 or 

 4-lobed. Annual. Involucre under Jin. diameter ; bracts smooth 5. P. Lessoni. 

 Involucres not 3 lines diameter, turbinate, rather narrow. Slender 

 annual. Ray-florets irregular, not much longer than those of the disk . 6, P, Siemssenia, 



