18 PLANTiE WEIGHTIANjE. T. 



rather leafy, bearing few flowers towards the summit. Leaves one or two inches in 

 length, on rather long petioles, acute or obtuse, coarsely and irregularly toothed or 

 sinuate, and nearly all of them with two hastate lobes near the base : both surfaces 

 are greenish, or the lower somewhat canescent when young ; the upper becomes al- 

 most glabrous. " Flowers orange-red," larger than those of S. incana and S. Fend- 

 leri (No. 59, 60), the fruit also larger and with shorter cusps than in the latter, the 

 lobes of the calyx narrower and more prolonged. 



44. SiDA HEDERACEA, TofT. in PI. Fetidl. p. 23. Malva hederacea, Dougl. in Hook. 

 Fl. Bor.-Am. I. p. 107. M. Californica, Presl Eel. Hcenk. 2. p. 121. M. plicata, 

 Nutt. in Torr. ^ Gray, Fl. 1. p. 227. Sida obliqua, Torr. &^ Gray, Fl. I. c. New 

 Mexico, the locality not recorded. 



46. S. HEDERACEA, a Variety with more toothed leaves ; otherwise as the Oregon 

 plant, but less downy. Sandy bottoms of the Rio Grande, below El Paso ; Sept. 

 " Flowers pale yellow." — Various forms of this species have just been received 

 from Mr. Wright's New Mexican collection of 1851 ; among them one with much 

 smaller, more oblique and plicate, and laciniately toothed leaves. 



J S. LEPiDOTA (sp. nov.) i uudique furfuraceo-lepidota vel argentata ; caulibus e 

 radice perpendiculari lignescente procumbentibus diftusis ; foliis triangulari-cordatis 

 vel hastato-sublanceolatis acutis basi valde obliquis laciniato-dentatis seu apicem 

 versus integriusculis ; pedunculis axillaribus solitariis unifloris ; calycis ebracteolati 

 lobis ovato-triangulatis acuminatis tubo subduplo longioribus corolla (ut videtur 

 rubella) paulo brevioribus ; carpellis dorso puberulis Iseviusculis rostro brevissimo 

 obtuso apiculatis. — New Mexico; from Mr. Wright's collection of 1851. — Root 

 long and rather woody. Stems 4 to 10 inches long, silvery with close lepidote 

 scurf. Leaves on rather long petioles, clothed, especially when young, with similar 

 scurf (instead of the loose stellate pubescence of S. hederacea), which at length be- 

 comes more sparse, or is partly deciduous, especially from the upper surface : they 

 are from half an inch to an inch and a half long, quite variable in shape, the lower 

 inclining to cordate or reniform, the uppermost to hastate-lanceolate. Peduncles as 

 long as the petioles, or the lower elongated. Flowers mostly smaller than those of 

 S. hederacea. A well-marked, although somewhat polymorphous, species of the sec- 

 tion Pseudo-Mahastrum. 



45. S. LEPIDOTA, var. depauperata : magis argentea, foliis floribusque minoribus. 

 — Hill-sides between El Paso and the mountains, Aug. ; in flower only, and insuflo.- 

 cient specimens : — hence I have characterized the species as above, from the more 

 normal and better developed specimens gathered during the past summer. 



47. S. LEPIDOTA, var. sagitt^folia : foliis lanceolatis hastatis vel sagittatis basim 

 versus ssepe dentibus laciniisve 2-3 instructis, caeterum integerrimis (infimis de- 

 sunt). Mountain valley, sixty miles west of the Pecos ; Aug. — This is evidently 

 no more than a variety of S. lepidota, with narrower, chiefly rameal leaves, some of 

 the uppermost nearly linear and entire. 



48. S. cuNEiroLiA : cano-tomentosa, humilis ; caulibus e basi fruticulosa assur- 

 gentibus ramosissimis ; foliis parvulis rotundato-cuneiformibus flabellato 3-5-ner- 

 viis crenato-dentatis repandisve utrinque concoloribus ; stipulis linearibus petiolum 



