CONTRIBUTIONS TO WESTERN BOTANY NO. 16 



rather flabby and without threads, or with a few near the base which are 

 line and not coarse as in baccata. The panicles are sessile, about as long 

 as the leaves, and the fleshy pear-like fruit is about half a foot long and 

 three inches wide and with conspicuous and edible outside pulp, and pend- 

 ent. It is seldom that any ripe fruit is seen for they are perforated in 

 many places by worms. Growing along with it, but mostly in the sun, is 

 an Agave of the Americana type. On the ground in the open places were 

 many annuals such as Panicum sanguinale, Aegopogon AcaJypha Neo- 

 Mexicana, Chenopodium botrys, Mi phorbia dentata, 



Phaseolus tenuis" ulina, IIoustor*ia angustifolia, Crusea 



sublate, Cuphea Palmeri, Linum Neo-Mexicanum, Schkuhria Wrightii, 

 Valeriana sorbii" iflora, Apolopap- 



pus gracilis, and the last Centaurea Ann ri. u , ij , ■ ■ i .; as if introduced. 

 Among the perennials at 5,500 feet altitude the most common grass 

 was Panicum bulbosum. growing m L «>■ clumps. Setaria_ glauca was 



was Agropyron Arizonicum, often 6 feet high and growing in small tufts. 

 Andropogon chrysocoma and furcatus were common. So was F.p;cainp( • 

 distichophylla and macroura. V.vw. ■■ f-. -.-i is ait^ns , nd pilosa, Orizopsis 

 micrantha, Commelvna dia Salix taxifob.-., 



Quercus hypoleuca and grisea, A< dypha Lindheimeri, Tragia nepetifolia 

 and ramosa, Ox; lis amplifoba, Erigonum annuum, and \V;i;.;-ii. 

 Silene laciniata. Sisymbrium Yascyi, Draba petrophila, Beiberis 

 Wilcoxi, Euphorbia il ;<dliform.is Argyll n ia Xeo-Mexicana, Calli- 

 andra eriophylia, Desmodium Axizoaricum. Bigelovii, Grahami. Te- 

 plirosia leucantha, Lupinus ampulus, and Palmeri, Philadelphia argenteus, 

 Cercocarpus bn ulis and ursinus, Agrimonia striata. 



Heuchera sanguinia, Gaura parviflora, and gracilis, Aralia bicrenata, 

 Galium Rothrockii, Ccntiana Wrightii, Ipomoea hederifolia, and cardio- 

 phylla, Geranium < - " i . n A •■' -^b . n '. 



Hedeoma oblongifola, Pentstemon bar' -bnalis, Verbena 



hastata, Fraxinus attenuata, Arbutus Arizonica, Gila aggregata, Lobelia 



."."-.; i ■ 



pi folia, Tageti lacinata, Ste- 



via Plummerae, Eupatorium Arizonicum. Fi-io-no Nbo-Mexicana, Xan- 

 thocephalum Wrightii, Brickellia ven<> btlora, chenopo- 



(iina," fioiiburda. Rusbyi, Encelia exarata, Senicio Hartwegi, Verbesina 

 longi folia, Heliopsis parvi folia. 



About half a mile above James's place the creek enters a canon which 

 is a real box, several hundred feet deep and about 100 yards long and 

 about 6 feet wide. On the rocks of this canon grow Draba petrophila and 

 rerityle coronopifolia. Just as one gets out of the upper end of the box 

 he comes into luxuriant flora of herbs and shrubs. It is here on the steep 

 slopes where the ferns abound. Almost the entire surface, including the 

 loose rocks, have ferns peeping out from every nook. Here I found Poly- 

 ! odium thvsanolci is. vA icb at first looks like the dwarf form of vulgare, 

 but the under su is a "long -stalk 



