ADDITIONS AND CORRECTIONS TO VOL. I. . 453 



G. ANGULOSUM, Gray, Proc. Amcr. Acad. xi. 74, from Guadalupe Island (Palmer), is a simi- 

 lar hispid S2>ecies, but woody at base, the stout stems and branches prominently .1 - 7-anf;i<'d : 

 leaves numerous, narrowly oblong, 3 or 4 lines long, to 7 in a whorl : llowers greenish white, 

 solitary and terminal : ovary smooth on a short erect or arcuate pedicel. 



2. Gr. Nuttallii, Gray. Stems usually slender and elongated, retrorsely hispid 

 or glabrous, often naked at base : leaves usually small (1 to 3 lines long), linear to 

 oblong, in fours, rather thin : flowers polygamo-dioecious, the sterile cyniose, the 

 fertile solitary : fruit smooth, nearly 1 ^- lines broad, on erect or arcuate pedicels 

 about a line long. 



In the Coast Ranges from San Francisco to San Diego. Confounded in the former description 

 with specimens of tlio following, which had not been supposed to belong to the Rclbunium section. 



2'. (8.) Gr. Bolanderi, Gray. Usually stouter, from a thick woody rootstock, 

 often smooth or nearly so : leaves usually larger (3 to 6 lines long), rather thick : 

 fruit white, ou slender refiexed or arcuate pedicels 2 to 4 lines long. — G. marga'ri- 

 coccum, Gray, Proc. Amer. Acad. xiii. 371, the fertile form. 



In the Sierra Nevada, from the Yosemite to Sierra County ; apparently also from Lake and 

 Humboldt Counties ( Torrey, Rattan), and San Bernardino Mountains, Parry k Lemmon, n. 152. 

 Originally described from sterile specimens. G. 2ncbcius also probably belongs to this group. 



Page 287. 2. PLECTRITIS. 



2. P. macrocera, Torr. & Gray. Fort Bidwell, Modoc County, Dr. W. 



Matthews. 



Page 291. Insert in Key to the Genera : — 

 20*. Townsendia. Low short-stemmed biennials. Akenes flattened, with subthickened mar- 

 gins, villous. Pappus a single series of scabrous bristles tliickened toward the base. 

 Othfrwise as Aster. 



102*. Crocidium. Involucre a single row of equal scales. Eeceptacle conical. Pappus capil- 

 laiy, none in the ray. Radical leaves rosulate, cauline alternate. 



106. Centaurea. Involucre naked. Akenes compressed. Pappus of numerous bristles. 



106*. Carbenia. Involucre within broad foliaceous bracts. Akenes terete, striate. Pappus of 

 10 outer and 10 shorter inner awn -like bristles. 



107*. Trixis. Involucre of 5 to 10 erect equal scales in one row, and an outer irregular series of 

 foliaceous bracts. 



108*. Cichorium (before Microseris). Flowers blue, sessile, axillary. Akeues obscurely stri- 

 ate. Pappus of short cliatfy scales. Erect, leafy and branching. 



Page 300. 3. BRICKELLIA. 



5. B. Greenei, Gray. Very viscidly pubescent, 1 to 1| feet high, the stems 

 leafy throughout : leaves tliinnish, ovate, obtuse, somewhat truncate at base, very 

 shortly petioled, unequally serrate at the sides, 9 to 12 lines long or more; tliose 

 upon the branches more oblong and subentire, half as long : heads solitary, sessile at 

 the ends of the branches, many-flowered, 7 to 9 lines long ; involucral scales linear, 

 acuminate, nearly glabrous, the outer lanceolate : akenes minutely hairy on the angles 

 above. — Proc. Amer. Acad. xii. 58. 



On the South Fork of Scott River, Siskiyou County, Rev. E. L. Greene, August, 1876. 



6. B. linifolia, Eaton. Minutely glandular-puberulent, 6 to IG inches high, 

 Avith narrowly elliptic-lanceolate acute entire sessile leaves |- to 1 inch long : heads 

 terminal on "the slender sparingly leafy branches, many-flowered, 5 to 9 lines long ; 

 involucral scales linear, acute, the outer ovate : akenes minutely hispid. — Bot. King 

 Exp. 137, t. 15. 



Yosemite Valley {J. G. Lemmon); Utah and Northern Arizona. 



Page 301. 4. ADENOSTYLES. 



1. A. Nardosmia, Gray. Klickitat County, Washington Territory, SuksJorf. 



