COMPOSITE. 447 



marginal corollas ample, much exceeding the others: pappus of 4 equal 

 narrowly oblong acutish paleae.— Plains of the lower San Joaquin. 

 April— June. 



3. C. ^nicilenta. Erect, slender, 5—10 in. high, simple, the flexuous 

 stem leafy below, parted at summit into several nearly naked slender 

 peduncles; herbage puberulent, perhaps flocculent when young: leaves 

 piunately parted into numerous short and simple lobes: involucre about 

 4 lines high: marginal corollas moderately ampliate: pappus of the 

 minutely and sparsely hispidulous slender black achenes short and very 

 unequal, the shortest squamellate and as broad as long, the longest 

 obovate-oblong, not a fourth the length of the achene, all obtuse and 

 erose-denticulate. — Dry ridges above Napa Valley, Jepson. May. 



4. C. tanacetifolia, Gray, Proc. Am. Acad. vi. 545 (1865). Low, 

 branched from the base, the leaves mainly in a rosulate tuft and 

 bipinnate, the lobes short; young herbage woolly: flowering branches 

 long, nearly naked and pedunculiform: heads 4 — 5 lines high: achenes 

 very slender, crowned with a pappus of 4 oblong obtuse palese and as 

 many or fewer very short and rounded ones. — Plains and hills, from 

 Lake Co. and the upper Sacramento southward to Kern Co. Bolander, 

 Palmer. 



5. C. heterocarpha, Gray, PI. Fendl. 98 (1849). Hoary-tomentose, in 

 age glabrate; stem 3—8 in. high, often simple and monocephalous, more 

 commonly with several peduncled and subcorymbose heads: leaves 

 pinnately parted into linear segments: heads J^ in. high: pappus of 4 

 lanceolate or oblanceolate paleae equaling the corolla, and '2 or more 

 extremely short ones. — Plains and hills from Butte and Humboldt 

 counties southward. April — June. 



* * Corollas ivhilish or flesh-color, the outer not enlarged. — Genus Macko- 



CARPHUS, Nutt. 



6. C. Xantiana, Gray, Proc. Am. Acad. vi. 545 (1865). Annual, erect, 

 4—10 in. high, stoutish, nearly simple, or with few branches, each termi- 

 nating in a long stout peduncle and large head: leaves pinnately parted 

 into 3 — 7 linear and distant lobes: involucre ?:£ in. high, its bracts 

 obtuse, pointless: pappus of 4 lanceolate pale;© equaling the corolla, and 

 4 very much shorter outer ones. — Mountains of Kern Co. and south- 

 ward. May— July. 



7. C. Douglasii, H. & A. Bot. Beech. 854 (1841); Hook. Fl. i. 316 

 (1833), under Hyrnenopappics. Canescent with a fine tomentum, 1 — 2 ft. 

 high, from a biennial or perennial root, the stems usually several and 



