422 BOTANY. 



ers. It was collected by Bigelow and others in Northern Arizona and New 

 Mexico and mentioned in Bot. WhippUs Rep. and Bot. Mex. Bound, under 

 G. elliptica, from which it is clearly distinct. The species seen by Fremont 

 in Southern Nevada was probably the same, so that it is doubtful if the true 

 G. elliptica occurs in this region. Central Arizona, (Captain C. A. Curtis ;) 

 near St. George, Southern Utah, (Palmer.) 



Page 136. Plectritis congesta, DC. Southern Utah, (Palmer.) 



Page 163. Aplopappus spinulosus, DC, Var. canescens, Grray.^ Fl. 

 Fendl. 75. California, New Mexico, and near Saltillo, Mexico. The typical 

 A. spinulosus extends east of the mountains to the Saskatchewan. The plant 

 is herbaceous, and has small pinnatifid or bipinnatifid rigid leaves, the lobes 

 bristle-tipped. The pappus in the present specimens is very unequal, and 

 the longer bristles are manifestly flattened toward the base. 



Tessaeia^ boeealis, T. & G. Plant. Wright. 1. 102. A branching 

 willow-like shrub, several feet high ; leaves an inch long or less, sessile, nar- 

 rowly elliptical, acute at both ends, somewhat silky ; heads not large, in ter- 

 minal clusters of 3-8 ; outer involucral scales ovate, tomentose, the inner 

 ones scarious and very narrow ; flowers mostly very slender, pistillate only, 

 a few (6-8) central ones larger and perfect. — New Mexico to California, usu- 

 ally on sand-banks along the rivers. This is the "Arrow-wood" of travellers, 

 and the Indians are said to use the long straight branches for their arrows. 

 There is a figure of it in Sitgreaves' Eeport. 



Page 166. Feanseeia dumosa. Gray. Fremont'' s Report, 'i\Q. A much 

 branched shrub, 1-2° high, with small canescent pinnatifid leaves, the minute 

 divisions 3-7, entire or lobed ; heads in a loose spike, the sterile ones with a 

 5-7 -cleft involucre ; fertile involucre with straight lanceolate prickles. — Cali- 

 fornia and Arizona. 



' Tlie following determinations and notes upon the Compositw of Dr. Palmer's Southern Utah col- 

 lection are due to Prof Daniel C. Eaton. In addition to these described species, Dr. Palmer also 

 collected the following, which are new to that section of territory, but are already mentioned in the Cat- 

 alogue.— -Bnijreroii BelMiastrnum, Nutt. JS.pimilum, Nutt. E. concinnum, T. & G., Var. condensatum, D. C. 

 Eaton, and Var. apltanactis, Gray. Chrysopsis villosa, Nutt., Var. hispida, Gray. Layia glandulosa, H. & A. 

 CrnapMlium palustre, Kutt. Antmnaria dimorplia, T. & G. Senedo Fmdlm, Gray. Xeb-adymia spinosa, 

 H. & A. Cirsium undulatum, Spreng. Stephanomma pentacTiwta, D. C. Eaton. Crepis oecidcntaJis, Nutt. 

 Mulgedmm pulohellum, Nutt. 



^TESSAEIA, Ediz & Pavon. Heads many-flowered, ray less, the outer flowers in several rows, 

 pistillate, with truncate or 2-3-tooth6d slender corollas, 1-8 central flowers larger, perfect or staminate. 

 Involucral scales imbricated in several rows, the inner scales longest, scarious and deciduous. Anthers 

 tailed at the base. Style of the central flowers undivided, of the outer flowers 2-cleft, exserted, glabrous. 

 Achenia short, somewhat terete, smooth. Pappus of rather few very slender capillary bristles.— Mostly 

 South American shrubs, with scattered entire or toothed leaves. 



