







V. 



PLANT^ WRIGHTIAN^. 



117 



(raro 3 - 4-setosis) 



Prairies at the Pass of tlie Limpia : Au 



fastif^ 



Stem much branched from the base, a span high, leafy, the branches 



cr 



Leaves an inch or less m iPngth, not rigid, perfectly ghabrous ; the lobcs 



four lines long, not 



setigerous 



or pomted, filifo 

 Peduncles about an inch long. 



PalesD of the pappus all similar, except that about five o^f 



as 



Involucre two lines Inno- 



llays about 



rhachis, 

 oblong 



often reduced to a subulate or setaceous rudiment. The 

 ger ones is a little shorter than the disk-coroUa • 



slender, but about one third the length of the 

 there are occasionally two 



capillary 

 the Lateral setifoi 



m of 



lobcs 



minute tecth below them 



1 



C" 



and H. tcnuifo' 

 Mixed with this 



lium induce me to refer Aciphyllsea acerosa to Hymenatherum. 

 in the distribution were some specimens of Lowellia aurea, q. v. p. 118. 

 361. H. PENTACH^TOM {BC. l Pwdr. 5. p. 64:2) : caulibus sufFruticulosis 



ramis abbreviatis conferte foliosis pedunculos solitarios eL 



dep 

 parce setaceo-b 

 partitis, lobis 5 -9 i 

 e paleis 5 brevibus 



CSDSpi 



gerentibus; foliis 



o 



g 



involucro 



puberulis glabratisve pinnati 



fere ebi 



k 



oblongis obtusis truncatisve muticis 



pappo 



5 



oblongo-lanceolatis in adstam breve corollam disci ada^quantera prod 



lobis lateralibus brevissimis subulatis 

 Hills of the San Pedro River 



Aug. 



Gra^, Pl. Fendl. p. 90, adnoL 

 De Candolle overlooked the five unawned 

 paleae of the pappus, which exist in all specimens, requiring therefore a modifica- 

 tion of the character, if, as I prefer, we retain this name instead of H. Berlandieri, 

 DC, which is only a more glabrate and slender variety of the same species. Earely 

 I find one or two of the 

 palea. 



ger palese scarcely awned, or replaced by 



The awn is usually about the length of the palea that beai 



362. H. PENTACH.ETUM, DC, var. foliis glabellis 



bus 



H. Beriandieri. DC. ! l 



pedunculis graciliori- 



On the Pio Frio and Rio Grande 



The 



rather more turbinate in this more s 

 of the specimens of De Gandolle's H 



This is just 



the other Tof which 



the corresponding specimens in Hookers herbarium are marked as gathcred between 

 Laredo and Bexar, therefore in Texas) is merely a still smoother and more slender 

 state of the species, viz. : 



H. PENTACHJETUM, DC, vai'. graciliore, foliis nitidulis fere glabris. H. Ber 



363 



landieri, DC 



361 H. H 



AVestern borders of Texas. 



;i : caulibus vix suffruticulosis erectis laxe ramosis ; ped 



gracilibus nudis fastigiato-subcorymbosis ; foliis glabellis pinnatipartitis, lobis 3-5 



filifo 



i"mi-acerosis rigidul 



campanulato fere eb 



paleis 



5 obovatis muticis et 5 alternis duplo longioribus oblongis 

 subaequantem productis, lobis lateralibus brevissimis 

 Pl Hartw. p. 18, non DC. Hills near El Paso, Sepi 

 more sparsely leafy, the peduncles more nuraerous 

 the leaves fewer, and proportionally longer, than in H 

 weg's plant, the small heads are narrow, the involucrc 



H. Berlandieri, Bejith 



The stems and b 



an 



le lobes of 

 In Hart- 



:ly 



in 



VOL. III. ART. 5. 



16. 



