V. PLANTJE WRIGHTIANiE. 93 



274. Aphanostephus ramosissimus, DC. Prodr. 5. p. 310. A. Riddellii, Ton: 

 8c Gray, Fl. 2. p. 189. Egletes ramosissima, Gray, PL Fendl. p. 71, ^ PI. Lindh. 

 2. p. 220. Prairies near Austin, Texas ; May. The form with strict and sub- 

 simple upright stems. It flowers during the whole summer, and often becomes very 

 much branched and difi"use later in the season. It is a pretty plant in cultivation. 

 The copious heads droop before anthesis, and are usually tinged with pink or purple 

 underneath. The ripe achenia are prismatic, as in A. Arkansanus, but not strongly 

 ribbed and sulcate. The base of the corolla is at length frequently indurated. 



275. A. RAMOSISSIMUS ; a diff'usely branched, more softly pubescent variety, with 

 smaller heads. Prairies along the Rio Grande, Texas ; July. 



276. A. HUMiLis. Leucopsidium humile, Benth. PI. Hartw. p. 18. Egletes hu- 

 milis, Grai/, PI. Fendl p. 71. Valley of the Rio Grande, 60 or 70 miles below El 

 Paso ; Sept. " Rays purple." Perhaps a dwarf variety of A. Arkansanus ; but 

 the pappus is entire and equably setulose-ciliate. 



t A. Arkansanus. Leucopsidium Arkansanum, DC. ! Prodr. 6. p. 43. Keer- 

 lia skirrobasis, DC! Prodr. 5. p. 310; Hook. Ic. PL t. 240. Egletes Arkansana, 

 Nutt. in Trans. Amer. Phil Soc. n. ser. 7. p. 394; Torr. 8f Gray, Fl 2. p. 411. 

 Eastern Texas ; common. — Having followed Nuttall in referring this plant to 

 Egletes, I subsequently did the same with its strict congeners, the preceding species. 

 But the recent examination of Egletes bellidiflora, Domingensis, and viscosa (Platy- 

 stephium, Gardner) leads to a different conclusion. Egletes has compressed achenia 

 (becoming somewhat turbinate by the great thickening of the pappus), with only 

 marginal, thickened ribs, and very short rays. The styles, moreover, as well as 

 the odor and aspect of the plants, show that they are genuine Anthemidese. The 

 achenia of Aphanostephus are prismatic or terete, strongly striate or ribbed on all 

 sides ; the rays are elongated ; the herbage is destitute of aromatic odor ; and the 

 style (well figured in Deless. Ic. Sel t. 18) is the same as in many other Bellidese. 



X Bellis integrifolia, Mickv. Fl 2. p. 131. Western frontiers of Texas; coll. of 

 1851. There is a congener of this in Gregg's last collection, made between the 

 city of Mexico and Mazatlan.* 



gra superatis. — Gray ^ Engehn. Proceed. Amer. Acad. 1. p. 47; PI. Lindh. I. c. — Western Texas, 

 Lindkeimer, Wright. 



2. K. EFFCSA : perennis } caule virgato ultrapedali ad apicem usque folioso hirsute ; foliis utrinque 

 hispidis coriaceo-membranaceis, infimis spathulatis, cseteris oblongis e basi lata arete sessilibus, costa sub- 

 tus prominula, ramis floridis in paniculam decompositam effusam diliquescentibus ; pedunculis filiformibus 

 divaricatis minutim bracteolatis "■, ligulis 5-7 oblongis ; fl. disci 7-10 fere omnibus sterilibus ; appendi- 

 cibus styli lineari-lanceolatis acutis ; acheniis radii plano-compressis obovatis calloso-marginatis parce hir- 

 tellis (ad margines prsesertim) faciebus fere enerviis apice acutatis, disci abortivis gracilibus; pappo mini- 

 mo setuloso-coroniformi. — Gray, PL Lindh. 2. p. 222. — Upper Guadalupe, near Camanche Spring, on 

 shady declivities, Lindheimer. " Camancheries," Texas, Berlandier, No. 1878 (v. in herb. DC). 



Keerlia linearifolia, BC. = Gutierrezia Alamani : vide supra, p. 91. 



K. ramosa, DC. = Aphanostephus sp. A. ramosissimo valde atfinis. 



K. skirrobasis, DC. = Aphanostephus Arkansanus (Leucopsidium Arkansanum, DC). 



* Bellis Mexicana (sp. nov.) : annua ? pilis patentibus hirsuta ; caule erecto folioso ; ramis mono- 

 cephalis ; foliis radicalibus caulinisque inferioribus spathulatis dentatis in petiolum longe attenuatis superi- 



VOL. III. ART. 5. — 13. 



