﻿PLANTS FENDLERIAN^:. 81 



spines, with two terminal and thicker, hut scarcely longer ones, forming beaks, much as 

 in Xanthium. — The vestiges of the lower cauline leaves in the specimen show that 

 these are more or less bipinnately parted, so that the plant is likely to be the Ambrosia 

 tomentosa of Nuttall's Genera, — which is known only by the incomplete character 

 given in that work, and which has not since been recognized. 



1 380. Xanthium echinatum, Murr., var. fructibus minoribus. Waste fields, Santa 

 Fe; August. (482.) 

 •s 381. Zinnia grandiflora, Nutt. in Trans. Amer. Phil. Soc. (n. ser.) l.p. 348 ; Ton. 

 8f Gray, Fl. 2. p. 298. Dry, gravelly hill-sides, Santa Fe ; June to October. Also on 

 Rayado Creek. (400.) — A dwarf, suffrutescent, eminently shoAvy species, bearing an 

 abundance of flowers through the whole season ; the rounded, light-yellow rays two 

 thirds of an inch in length, around a narrow, orange-colored disk. Some of the achenia 

 bear a short fimbrate-laciniate awn, and a bristle or two in place of the second : others 

 bear a little tuft of a few bristly hairs in place of the awns. • The chaff is petaloid and 

 orange-colored at the tip.* 



f382. Heliopsis l.£vis, Linn. Mora River, New Mexico ; August. (430.) 

 f383. H. uevis, /3. gracilis, Ton. 8f Gray, FL 2. p. 303. Council Grove; Au- 

 gust.f (433.) 



* Dr. Torrey has re-described and figured it in Emory's Report (plate 4). The following is a very 

 dwarf, apparently undescribed species of the same habit, from Dr. Gregg's collection : — 

 •/ Zinnia pumila (sp. nov.) : caespitosa e caudice suffruticoso, depressa ; caulibus 2-4-uncialibus ramosis 

 conferte foliosis, hirsutis ; foliis anguste Iinearibus uninerviis impresso-punctalis margine cartilagineis scabris 

 basi connatis internodiis multo longioribus nunc fere imbricatis ; capitulis parvis brevissime pedunculatis ; in- 

 volucri squamis rotundatis ; ligulis ovalibus luteis ; paleis receptaculi obtusissimis apice suberosis ; acheniis 

 disci uniaristatis aut subbiaristatis margine cum basi aristce ciliatis. — High plain near San Juan de la Vequeria, 

 and at Castaniola, in Northern Mexico, Dr. Gregg. — More dwarf and condensed than Z. grandiflora; the 

 leaves half an inch long. Head three tenths of an inch in length ; the pale-yellow rays about as long as the 

 involucre, perhaps not persistent. 



t Specimens of Heliopsis lasvis, y. scabra, Torr. §• Gray, from Arkansas and farther westward, often show 

 the rays persistent until the achenia are mature, and have an obscure coroniform pappus, much more marked 

 than in the Eastern plant. In Mr. Spalding's Oregon collection occurs an undescribed Heliopsideous plant, 

 which has the same relation to Balsamorrhiza that Kallias, Cass., has to Heliopsis proper : — 



BALSAMORRH1ZA § KALLIACT1S. Ligulre marcescenti-persistentes. Achenia pubescentia. — Cau- 

 lis bi - pluriflorus, parce foliatus ; foliis integerrimis. 



/ B. Careyana (sp. nov.) : cinereo-puberula, subscabra ; caule erecto apice subvilloso 2-8-cephalo; foliis 

 longe petiolatis adultis scabris reticulato-venosis, radicalibus cordato-haslatis repandis, caulinis 3 - 7 parvulis 

 lanceolatis subtrinervatis sparsis imisve oppositis; involucri squamis biseriatis lanceolatis appressis villosulis 

 sequilongis discum sequantibus ; ligulis circiter 12 ovalibus emarginatis multinerviis inferne puberulis discum 



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