Leysera.'] lxxiii. composite: (oliver and hiern). 355 



39. LEYSEBA, Linn. ; Benth. et Hook. f. Gen. PI. ii. p. 327. 



Capitula heterogamous, radiate ; florets all or mostly fertile ; those 

 of the ray female, in one row, those of the disk hermaphrodite. Invo- 

 lucre turbinate -campanulate ; bracts in several rows, imbricated, dry ; 

 the outer ones successively shorter. Receptacle flat, naked or nearly 

 so in our species. Corolla of the ray-florets nan-owly ligulate, of the 

 disk-florets narrowly tubular, regular, shortly 6-cleft. Anther-base 

 sagittate^; auricles minute, very narrowly tailed. Style-branches 

 narrow obtuse. Achenes narrow, angular. Pappus consisting of short 

 palesB connate at the base and of a few long outer plumose setae. — 

 Rigid or slender herbs or undershrubs with narrow entire crowded 

 leaves and yellow flowers. 



A small genus, all South African, except the following. 



1. Xi. disooldea, Cass, in Diet Sc. Nat. xxvi. p. 79 (1823). A 

 slender somewhat glandular-scabrid shining annual, branched from the 

 crown of the root, 3-6 in. high. Leaves narrowly linear or filiform, 

 ranging up to 1 in. long. Capitula ^-^ in. long, solitary, on slender 

 divaricate subterminal peduncles of 1-2^ in. long. Involucral bracts 

 obtuse, linear or the outer ones oblong or oval, the inner ones with 

 scarious tips. Ligule of the ray-florets very small. Setee of the outer 

 pappus plumose towards the apex. — Longchampia capillifolia, Willd. 

 in (xes. Nat. Freu.ide Mag. v. p. 160 (Berol., 1811 ) ; Leyssera capilli- 

 folia, DC. Prodr. vi. p. 279 cum syn. 



Vile Ziand. Soturba, Schweinfurth ! 



Occurs also from Spain through North Aftica to Western Asia. 



40. ATHRIXIA, Ker. ; Benth. et Hook. f. Gen. PI. ii. 328. 



Capitula heterogamous radiate, ray-florets ligulate (in the following 

 sp.). Involucre turbinate-campanulate, many-flowered ; bracts multi- 

 seriate pointed narrow with squarrose tips, outer successively shorter. 

 Receptacle naked. Anther-base sagittate with tailed auricles. Achenes 

 oblong costate. Pappus 1 -seriate or with very short outer setulae. — 

 Shrubby (or herbaceous) with alternate entire narrow revolute leaves 

 and terminal solitary or subcorymbose pink (or yellow) capitula. 



Chiefly South African and Australian. 



1. A. rosmarlnlfolla, 0. 8f H. Fruticose, 2 ft. high or more ; 

 branches virgate, erect or ascending, slender, leafy above, terete, some- 

 what striate, whitish tomentose or puberulous at the extremities, 

 puberulous or thinly lanate below, ultimately glabrate. Leaves linear 

 or narrowly linear-lanceolate, acute or apiculate, sessile, not narrowed 

 at base, albido-tomentose beneath, nearly or quite glabrous and shining 

 above, coriaceous, margins entire revolute ; ^-^i in. long by 3^—5 in. 

 wide ; uppermost smaller. Capitula ^ in. long, on very short pe- 

 duncles, solitary or 1—3 close together, terminal and subterminal. 

 Scales of the involucre acute, apiculate, more or less woolly at the 

 back at least above, reflexed at apex ; inner linear, ciliate, scarcely 



