392 C03IP0SIT^. Blepharipappus. 



Heads 3 lines long. "Rays scarcely longer than the disk, sometimes palmate 

 and furnished with stamens : the branches of the style linear. — The style of 

 the disU-flovvers is very peculiar, and more like that of the Cynarese than of 

 the present tribe. — De CandoUe's character of Blepharipappus, made by 

 combining the description of Hooker's two species, is consequently inapplica- 

 ble to either. Tlie division of the genus was proposed by Arnott, in the 

 second edition of Lindley's Introduction to the Natural System, and also in 

 the Supplement to Capt. Beechey's Voyage (p. 358) ; retaining the name 

 for the present species. 



Div. 4. Madie^:, DC. — Receptacle chaffy throughout, or only at the 

 margin ; the chaff often more or less united. Scales of the involucre con- 

 volute or complicate and enclosing the (fertile) achenia of the ray, which are 

 always destitute of pappus. (Natives of Chili, California, and Oregon.). 



133. ACHYRA-CH^NA. Schauer, del. sem. Vratis, 1837 ; DC. I. c. 



Head many-flowered ; the ray-flowers sterile, small, somewhat ligulate, 

 or cleft on one side, retaining the rudiments of stamens and style; those of 

 the disk perfect, 5-cleft. Scales of the involucre in a double series, lanceo- 

 late ; the exterior foliaceous, somewhat convolute and including the ray- 

 flowers ; the inner plane, with scarious margins. Receptacle flat, bearing a 

 series of chaffy scales between the ray and disk ; otherwise naked, alveolate 

 and somewhat fimbrillate. Anthers not caudate ; the antheriferous joint 

 rather long. Branches of the style nearly terete, puberulent. Achenia 

 elongated, attenuate at the base, longitudinally striate, scabrous along the 

 nerves; in the ray destitute of pappus; in the disk crowned with an ample 

 pappus of 10 membranaceous obtuse scales in 2 series; the 5 exterior scarce- 

 ly half the length of the inner; the latter when young convolute around the 

 tube of the corolla. — A villous herb [annual], with somewhat the habit of 

 Hecubaea or Scorzonera, rather canescent ; some of the hairs long, others 

 very short and perhaps glandular. Stem nearly simple, naked at the sum- 

 mit and bearing a single head. Leaves alternate, hnear, sessile, entire. 

 Corolla with a long tube, in the dried specimens purple. DC. 



A. mollis (Schauer, 1. c.) — Linncea, 12. svppl. p. 87 ; DC. prodr. 7. 

 p. 292. Lepidostephanus madioides, Bartl. 'hid. san. hort. Gcett. 1837, 

 Sy in Linmea, I. c. p. 82, c^ 15. p. 94. 



Western coast of North America, probably from California, Douglas. 

 Described by DeCandolle apparently from the wild plant, in 1838; but the 

 genus founded the year preceding, both by Schauer and Bartling, on speci- 

 mens cultivated in"^the Botanic Gardens ofBreslau and Gu^ttingen. Accord- 

 ing to Schauer, the scales of the involucre are in a single series, as many as 

 the short 3-toothed rays (5-10), and the somewhat foliaceous chaff in 2 

 series : the inner scales of the white and scarious pappus linear, obtuse, 

 slightly fimbriate at the apex, as long as the flowers : the stems somewhat 

 branched : the oblong 20-30-flowered heads almost an inch long. Accord- 

 ing to Bartling, the head is about half an inch long ; the rays 3-5, at first 

 yellow, at length fuscous ; the pappus shining, denticulate under a lens. 

 The genus would appear to rank next to Chienactis, except that the rays are 

 destitute of pappus, and the receptacle chaffy at the margin. 



