Calais. COMPOSITiE. 471 



the interior 8-12 somewhat in 2 series, rather longer than the flowers. Re- 

 ceptacle flat, naked. Achenia terete, slender, attenuate at the summit or 

 rostrate, striate ; the minute ribs scabrous. Pappus of 5 linear-lanceolate 

 l-nerved scarious scales (which are at length convolute around the corolla) ; 

 the midrib produced into a minutely scabrous awn. — Annual nearly glabrous 

 (Californian) herbs, simple or sparingly branched near the base ; the scapi- 

 form stems mostly exceeding the linear and attenuated entire or sparingly 

 pinnatifid leaves, naked and fistulous above, terminated by a single head. 

 Corolla yellow. 



§ 1. Achenia scarcely rostrate ; the exterior (Nutt.) {the inner, ex Hook. & 

 Am.) hirsute with ajipressed hairs ; the others scabrous: the chaffy scales of 

 the pappus dilated at the base, tapering gradually into the long awn : invo- 

 lucre more evidently calyculate. — Eucalais, DC. (Uropappus § Brachy- 

 carpa, Nutt.) 



1. C. Douglasii (DC! 1. c.) : scapose, somewhat hairy when young; 

 leaves linear^lanceolate, entire, or remotely pinnatifid, with the lobes linear 

 and short (pappus reddish, DC., or straw-color, Nutt.). — Hook. S^- Am. bot. 

 Beechey, suppl. p. 361. Uropappus (Brachycarpa) heterocarpus, Nutt. in 

 trans. Amer. phil. soc. {n. ser.) 7. p. 425. 



CaUtbrnia, Douglas, Nutlall. — Plant 6 inches high. Flowers pale yellow, 

 small. Nutt. — We have only seen this plant in the herbarium of De Can- 

 doUe. The character given by Hooker & Arnott embraces the phrase: 

 " pappi paleis appresse villosis." 



§ 2. Achenia all similar and glabrous, tapering into a short beak, the angles 

 minutely muricate- scabrous : chaffy scales of the pappus bifid at the apex ; 

 the midrib produced between the teeth into an awn of variable length: 

 exterior involucral scales unequal. — Calocalais, DC. (Uropappus § 

 Calocalais, Nutt.) 



2. C. linearifolia (DC! 1. c.) : scapose or caulescent; leaves linear, elon- 

 gated, ciliate with soft hairs when young, often puberulent, as well as the 

 base of the stem, either entire, remotely toothed, or the lower laciniate- 

 pinnatifid (pappus either silvery-white or tawny). — Hook. Us; Am.! I. c. 

 C linearifolia & C. Lindleyi, DC. I. c. (excl. syn.) Uropappus grandi- 

 florus ! U. linearifolius ! & U. Lindleyi, Nutt. ! I. c. 



California, Douglas! Nuttall! — Plant 10-14 inches high; the long scapoid 

 peduncles very fistulous. The capillary awn much shorter than the chaff'of 

 the pappus; one or two of them in someof the flowers scarcely if at all exserted 

 beyond the cleft. — Nutlall's Uropappus grandiflorus is exactly the Doug- 

 lasian C. linearifolia: his U. Lindleyi is founded merely on the character of 

 De CandoUe : his U. linearifolius is a state with rather smaller heads, &c. 



183. CICHORIUM. Tourn.; Linn.; Gcertn.fr. t. 157; DC. prodr.l. p. 84. 



Heads chiefly many-flowered. Involucre double ; the exterior of about 5 

 short spreading scales ; the inner of 8-10 scales. Achenia somewhat com- 

 pressed, striate, glabrous. Pappus of numerous very small chaffy squamellaj, 



