t 



y. 



PLANT^ WRIGHTIAN^ 



73 



May, June. — From Mr. Wright alone have I received specimens of this trimerous 

 Gaura, gathered in successive years. They all look like depauperate specimcns of 

 the foregoing, with the fruit (being triquetrous) perhaps a little narrower and more 

 pointed, and its sides more distinctly corrugated. It agrees very well with the G. 

 tripetala of Mr. Webb's herbarium, both with indigenous specimens from Pavon, 

 and with cultivated ones by Desfontaines from the Jardin des Plantes. 



; Gray, Pl Fendl p, 46. Coll. of 1851. Stems somewhat 



+ 

 + 



G 



Torr 



Yalley 



woody at the base, from a thick and truly perennial root. 



206. G. cocciNEA, Nutt ; var. caule villoso-pubescente, foliis subsericeis. 

 of the Limpia ; Aug. There is no ripe fruit. That of the ordinary G. c 

 canescent-puberulent, pyramidal above, acute, or when ripe quite obtuse, contracted 

 abruptly below into a narrow neck, which is shorter than that of G. Drummondii. 



207. G, 



Nutt. ; Torr. 8r Grau, Fl. 1 . ». 5 1 8, fere 



Zacate Creek, and near the valley of the 



var. <y. Prairies of 

 Grande, New Mexlco. Also in the 



of 1851 



The ripe fruit is remarkably broad and obtuse, with a very short 



base ; but it is much the same in specimens from Saskatcha\^' 



younger fruit on the same individuals 



Similar forms 



m ; and the 

 Fendler's collec- 



referred to G. epilobioides, H. B. K., and apparently with good reason, for 



I see no available characters to distinguish the two species 



208. G, 



Same as the last, but with the stems hairy below 



Val^ 



leys between the Pecos and the Limpi 

 with very small and narrowly linear leave 



Aug 



There are also some specimehs 



209. G. Drummondii, Spach ; Torr. 8^ Gray^ Fl, 1. jp. 519. Prairies on the Sa 



binal, Texas : June 



LOASACE^. 



210. Mentzelia oligosperma, Nutt. ; Torr. 8f Gray, Fl. 1. p. 533. M. aurea, 



Nutt. Gen. 1. p 



M. rhombifolia, Nutt, in Torr. and Grau, l c. Dry hills and 



pi 



from Turkey Creek to the San Pedro River. " Flowers opening in the 



morning," as in other species witlL. yellow 



To this common and widely 



difFused species we may safely join the M. rhombifolia of Nuttall 



21 



M. (Bartonia) Wrightii, Gray, Pl. Fendl. p. 48 



Colorado at Austin, and opposite Bastrop, Texas. 

 M. pumila, Nutt.., and ochroleucous. 



212. M. (Bartonia) nuda, Torr. 8r Gray, Fl. 1. p 



On sand-bars in the 



Flowers smaller than those of 



Gray, Pl. Fendl. p. -il 



Pl. IJndh. 2. p 



Gravelly banks of the Rio Seco, ^^ 



Texas: June 



A smaller-flowered state than usual ; the petals only three fourths of an inch long. 

 No. 212% from the Guadalupe Mountains, is apparently a depauperate form of 

 the same species, and not M. pumila, Nutt, which has yellow, according to Geyer 

 " bright golden-yellow," flowers of lesser size.f 



In 1848, Mr. Wright collected, on the Rio Grande, a Gaura with extremely silky-canescent ovate- 

 lanceolate leaves and pedicellate flowers ; but without fruit it cannot properly be characterized. 



f Montzelia (Bartonia) IjEvicaulis, raised during the last season in the Cambridge Botanic Garden, from 



aftemoon 



five 0'clock, in bright sunshine. (See notes in Pl. Fefdl. p. 47.) 



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