]44 BOTANY. 
Iris DouGLASTANA, Herb. l. c. Hill-sides, Grass Valley, California; May 19. The tube of 
the perianth is longer than in our original Douglasian specimens of hits plant. 
Var.? MAJOR : floribus majoribus; pedicellis elongatis (fere unc. longis). Corte Madera, 
California; April 10. 
IRIS 0 A Nutt. Jour. Acad. Phil. 7, p. 58? Sandia Mountains, New Mexico; 
October. In fruit only. Leaves rather rigid, 4-5 lines wide. Scape 1-2-flowered. Capsules 
1-12 inch long, obtusely triangled, abruptly contracted at the base; statutes slightly prominent. 
Sn obovate, somewhat compressed, reddish brown. Rhizoma Sick and creeping, clothed 
with strong brownish lanceolate scales. 
IRIS MACROSIPHON (sp. nov.): pumila ; subcaulescens; rhizomate gracili; foliis angustis erectis; 
caule bifloro; perianthii imberbis tubo prelongo exserto; petalis apice denticulatis; ovario 
attenuato breviter pedunculato. Hill-sides, etc., Corte Madera, California; April 10. Leaves ` 
less than one-third of an inch wide. Stem (exclusive of the flower) 2-3 inches high, the bracts 
somewhat unequal. Flowers as large asin I. versicolor, bright purple. Tube of the perianth 
23 to 3} inches long, very slender. Exterior sepals broadly obovate; the interigr shorter. 
MELANTHACEJE. 
Prosartes Hooker: foliis sinu profundo cordatis caulem amplectentibus; umbellis 3—4-floris ; 
perianthio basi obtuso, phyllis lanceolatis obtusiusculis; antheris linearibus glabris; stigmate 
fere integerrimo. Uvularia lanuginosa ñ. major, Hook. Fl. Bor.—Am. 2, p. 114. Mountains; 
near Oakland, California ; April 4. "Very near P. lanuginosa of the Atlantic States, but differs 
in the strongly cordate and clasping leaves, more numerous-flowered umbels, and in the form 
of the sepals. 
PROSARTES TRACHYANDRA (sp. nov.): foliis oblongo-ovatis basi rotundatis seu vix subcordatis 
arcte sessilibus, inferioribus amplexicaulibus ; umbellis 2-3-floris; perianthio basi subacuto, 
phyllis rhomboideo-lanceolatis ; antheris oblongo-linearibus hírtellia ; stigmate integerrimo. 
Hill-sides, Duffield's Ranch, Sierra Nevada; May 10. This species is easily distinguished from 
the preceding by its scarcely cordate leaves, broader attenuate sepals, and especially by its 
hispid anthers. The stem is about two feet high, and dichotomously branched. The flowers 
are as large as in Uvularia perfoliata, and of a greenish white color. At the base of each sepal 
is a distinct nectariferous pit. 
VERATRUM VIRIDE, Ait. Kew. ed. 1, 3, p. 422; Torr. Fl. New York, 1, p. 317. Swamps, near 
the South Yuba, California ; May, (with unexpanded flowers); and marshes, near San Gabriel, 
(leaves only.) 
ANTICLEA NUTTALLIT, Amianthium Nuttalii, Gray, Melanth. Revis. in Ann. Lyc. N, York, 4, 
p. 123. Amiantanthus Nuttallii, Kunth, Enum. 4, p. 181. River banks, Mokelumne Hill, and 
Sonora, California; May, (in fruit.) This is the Poison or Death Camass of the Northwest 
Indians. The rootis a bulb the size of a musket ball, and is covered with a blackish skin, 
but is white within. We find the sepals to vary in form, from very obtuse and emarginate to 
acute or acuminate. The gland is a small, roundish, discolored spot, without a very distinct 
margin. 
ANTICLEA FREMONTI: foliis lato-linearibus planis, racemo composito interdum simplici ; sepalis 
ovatis brevi unguiculatis acutiusculis 5-7-nerviis, glandula superne dentata, dentibus cum 
basis nervos incrassatos confluentibus. Mountains near Oakland, April 4, (in flower.) Also 
found by Mr. Rich near Monterey ; and by Colonel Frémont at Santa Cruz, (flowering in Feb- 
ruary,) and on the Uinta River, Utah; June, (in fruit.) Itis No. 2009 of Hartweg's Californian 
collection. We have specimens of it collected i in California by Mr. Douglas, so that it is prob- 
ably Zygadenus chloranthus, Hook. de Arn. Bot. Beech. (excl. syn.) Bulb tunicated, about as 
large as a pigeon's egg. The stem is from a few inches to 4 feet high, simple or mom 
branehed above, the branches terminating in simple racemes. Flowers hermaphrodite, three- 
