112 BOTANY. 



(399). Leaves oblong to subcordate, obtuse, crenately serrate, covered with 

 a white tomentum beneath, and very veiny. 



Fallugia* paeadoxa, EndL— Shrubs 2-5° high, with young branches 

 white; leaves £-l£' long; leafless branches terminated by the whitish 

 flower, which is an inch or more in diameter, or later by the dense head of 

 carpels with thin, woolly styles. Calyx-lobes acute and usually reflexed 

 after the petals fall. — Santa Fe" 58), and Arizona, Loew. 



G-eum maceophyllum, Willd.— Colorado (380); Utah; Loew, in Ari- 

 zona. 



Gtkum teifloeum, Pursh. — Colorado (394). 



Geum eivale, L. — Colorado (381). 



Ceum Rossn, Seringe. — Colorado, alpine, reaching as high as 13,500 

 feet (385, 387) ; Utah. 



Fbagaeia Vieginiana, Duchesne. — Colorado (402). Var. glauca, 

 Watson. 



Potentilla glandulosa, Lindl., var. Nevadensis, S Watson. — (379.) 

 Collected in Colorado in 1873. It is a true P. glandulosa, Lindl., and hence 

 the same as P. fissa, Nutt., differing from the above only in having more 

 flowers in its less compact cyme. The Survey has it also from Utah. 



Potijntilla eivalis, Nutt. — South Park (373). 



Potentilla Pennsylvania, L. — South Park and Twin Lakes, Colo- 

 rado (374, 375); Utah. 



Potentilla Hippiana, Lehm. — White tomentose throughout, 1° high; 

 leaflets 7-11, decreasing regularly in size from the terminal one down, J-l' 

 long, deeply and sharply serrate; 1-2 smaller leaves on the stem; bract- 

 lets a little shorter and petals a little longer than the sepals. Flowers 

 yellow; styles terminal, filiform; carpels glabrous. — Colorado (367, 209) 

 and Arizona (220). 



* Fallugia, Endl. — Tube of the persistent calyx obcomc-beuiiBpherical. At the apex 5-bracteo- 

 lato ; lobes 5, ovate ; apex 3-dentate, or 3-cusp'date, imbricated. Petals 5, large, obovate-rotund. Stamens 

 many, inserted in a dense 3-fold series ; filaments filiform, united info a ring at the base; anthers small. 

 Torus silicate, villous, many carpels on the small conical receptacle; style terminal, villous; stigmas 

 small, a single ascending ovule in the base of the cell, the many villose achenia terminated by very 

 long, plumose styles. Seed erect; testa membranaceous ; cotyledons linear-oblong; radicle inferior. — An 

 erect, much branched shrub, -with virgate branchlete. Leaves alternate, petioled, irregularly 3-5-oleft or 

 pinnatifid. Stipules adnate to the petiole. Flowers solitary on the apex of the branches, or sub-panicu- 

 late on elongated, leafless branches, bractless, rather large. — Bentham & Hooker. 



