Myrioa-iyhalm.] LXV, COMPOSITE. 847 



General involucre of very numerous bracts in several rows, transparent with 

 short green midribs, ciliate with long woolly hairs, except the small glabrous 

 tips which form a ray round the cluster. General receptacle very broad and flat. 

 Partial heads very numerous, shorter than the general involucre, 1 -flowered. 

 Partial involucres of 3 bracts, one subtending and two lateral, all linear, hard 

 more or less concrete at the base, transparent but narrow above. Florets very 

 numerous, 3 or 4-toothed. Achenes narrow, sparingly hairy, especially near the 

 top. Pappus of a single hair-like awn, slightly dilated at the base or occasionlly 

 none. — UyalnJeins rhizocephala, DC. Prod. vi. 149 ; //. occidentalU, F. v. M. 

 Fragm. iii. 155. 



Hab.: Southern localities. 



2. TSl. Rudallii (after Dr. J. T. Rudall), Benth. Fl. Austr. iii. 559. An 

 annual, branching at the base, with decumbent or ascending stems under 6in. 

 long, loosely woolly. Leaves oblong-linear, cuneate or spathulate, very obtuse, 

 often dilated at the base, not above Jin. long. Clusters of flower-heads when 

 full-grown about Jin. diameter. General involucre of very numerous woolly- 

 oiliate bracts, those of the outer rows shorter, with green midribs and no 

 laminffi, those of the inner rows with small white petal-like spreading tips, 

 forming a ray to the cluster. Partial-heads about 4-flowered, the involucre of 

 about 5 very narrow bracts, the subtending and outer ones little more than the 

 midrib dilated and exceedingly thin and transparent at the end, all ciliate with 

 fine long woolly hairs. Achenes with 1 to 4 unequal bristle-like scales. — 

 ElacJiopappus Rudallii, F. v. M. Fragm. iii. 157. 



Hab.: Towards Cooper's Creek. 



3. VtL. Stuartii (after J. M'D. Stuart), Benth. FL Austr. iii. 560. Erect, 

 apparently annual, not much branched, 1 to 2ft. high, pubescent or woolly-white. 

 Leaves linear or lanceolate, half stem-clasping, 1 to 2ini long, the smaller distant 

 upper ones often with white scarious tips passing into the involucral bracts. 

 Clusters of flower-heads hemispherical, attaining lin. diameter or even more. 

 General involucre of numerous bracts in several rows, herbaceous at the base, 

 with white ovate spreading laminae fully 2 lines long, forming a very conspicuous 

 ray to the cluster. Partial heads 5 to 8-flowered or the central one with more 

 numerous florets ; the involucral bracts exceedingly thin and transparent, fringed 

 at the end, about 2 of the outermost of each involucre as well as the subtending 

 one contracted into a short rigid midrib, the others transparent from the base 

 and very broad. Achenes densely clothed with very long woolly hairs. Pappus 

 of 15 to 20 unequal bristles, slightly dilated and ciliate or plumose with short 

 hairs. — Polijcalyriima Stuartii, F. v. M. and Sond. in Linnaea, xxv. 494 ; F. v. M.' 

 PI. Vict. t. 42. 



Hab.: The interior, towards Cooper's Creek. 



43. ANGIANTHUS, Wendl. 

 (From the vessel-like form of the flowers.) 



(Siloxerus, Labill.; Ogcerostylus, Cass.; Styloneerus, Spreng.; Cylindrosorus and Phyllo- 

 oalymma, Benth.; Skirrophorus, DC; Chrysoooryne, Endl.; Eriocladium, Endl.; 

 Pogonolepis, Steetz ; Piptostemma, Epitriehe and Gamozygis, Turez.; Cephalosorus, 

 Hyaloohlamys and Dithyrostegia, A. Gray; Pleuropappus, F. v. M.) 



Flower-heads numerous and sessile on a cylindrical conical convex or flat 

 receptacle, in a dense cluster spike or compound head, surrounded by a general 

 involucre of large and leaf-like or of small and herbaceous or scarious bracts, or 

 of both in few rows without radiating tips or sometimes very • few or none. 

 Partial heads 1 or few-flowered, very rarely many-flowered. Involucre com- 

 pressed, of few scarious transparent bracts, the subtending one flat, two lateral 



