44 
BOTANY. 
Spraguea^ umbellata, Torr. Plant. Fremont., p. 4, t. 1. Perennial, 
with a short and thick caudex and snbfusiform root ; leaves obovate-spatulate, 
obtuse, entire ; stems several, (2—4' high,) with remote and smaller leaves ; 
spikes numerous, leafless, short-peduncled, with ovate membranous bracts at 
base, in a terminal umbel or rarely somewhat panicled ; flowers on short ped- 
icels ; petals shorter than the sepals ; style slender, equaling the stamens ; 
stigma more or less lobed. — Northern California and near Mt. Adams, Wash- 
ington Territory. At the Steamboat Springs and on the East Humboldt 
Mountains, Nevada, at 5,000 and 10,000 feet altitude respectively ; May and 
August. (185.) 
Speaguea paniculata, Kell. Proc. Calif. Acad. 2. 187, 56. Stems 
decumbent or prostrate, leafy -paniculate ; leaves mostly radical, nearly equal- 
ing the stems, very minutely villous. — Possibly an unusually paniculate form 
of the last. Collected by 0. H. Dorr at west base of Mt. Davidson, Nevada. 
Calyptridium^ roseum. Glabrous, diifusely branched, decumbent ; leaves 
alternate, oblong-spatulate, obtuse, attenuate at the base ; radical leaves few 
or none ; flowers in numerous axillary and terminal peduncled scorpioid 
racemes; sepals very unequal, nearly orbicular; petals minute, rounded- 
oblong, free or attached at the apex ; capsule oblong-ovate, not exceeding 
the calyx, 6-12-sceded. — Stems 3-6' long, prostrate; leaves 1' or less in 
length. The generic description below is shghtly changed from that given 
by Nuttall, and by Bentham and Hooker, to include the present species. 
Found in the Truckee and Monitor Valleys, and also collected by Dr. Torrey 
near Empire City, Nevada; 4,200-5,500 feet altitude ; May and July. Plate 
VI. Fig. 6. A plant ; natural size. Fig. 7. A flower, laid open and the petals 
removed. Fig. 8. A mature capsule ; both enlarged four diameters. (186.) 
Lewisia=^ rediviva, Pursh. Root fleshy, fusiform ; leaves densely im- 
bricated on the short thick caudex, hnear-oblong, thick and succulent ; scapes 
' SPRAGUEA, Torr. Sepals 2, orbicular-cordate, membranous-hyaline, persistent. Petals 4, liypo- 
gynoua. Stanu ns W opposite to the petals and adherent to them at base. Ovary free, 8-10-ovuled ; style 
bifid. C;i])snle meuibranous, 2-valved, globose-ovoid, compressed. Seeds laterally compressed, subreni- 
loi 111. shiuini;.— Glabrous herbs with radical spatulate somewhat fleshy leaves, snuill scarious stipules, and 
lluwt IS inibiirate in dense scirpoid nmbeled terminal spikes. Benth. Hook. 
- ('Ar.Yl''nai)IU.M, Ni tt. 8epals 2, broadly ovate or orbicular, nearly flat, hyaline, persistent. 
Petals 2. soiacwhat adhcr.'nt at apex, aUt-rnate with the sepals. Stamen 1, inserted opposite the lower 
sepal. Ovary frt f. fc w-ovided ; style veiy short, bifid. Capsule oblono- or oblong-liuoar, hyaline, 2-valved. 
Seeds laterally eonii)ressetl, orbicular, shining.— Annual diffuse herbs, with small flowers in subpaniculate 
racemes. Ui A iir. IIooK. 
^^LEWISIA, PriisH. Sepals 4-8, broa<lly o\:\U\ porsist.Mit. Petals 8-10. Stamens numerous. 
Ovary free, niany-i.vulc.l ; style deeply 5-f?-parted. Capsule globose, dehiscing transversely at base, 
siih-()-valv<Ml. S. ids rcnitbini-globoso or compressed. Bentii. & Hook. 
