AND GENERA OF PLANTS. 351 



Flower large and showy, about three to four inches in diameter, while the scapoid stem is not 

 more than a span high. Stigmas very hirsute, filiform. Rays feminine, with infertile filaments. 



Balsamorliiza helianthoides. Espeletia heliayitTwides; Nutt. in Journ. Acad. 

 Nat. Sci. Philad., Vol. VII., p. 39. Certainly not congeneric with Humboldt's 

 genus. Allied closely to the preceding, but with a different pubescence and 

 closely imbricated, lanceolate, acuminate sepals. Rays with infertile filaments, 

 about fifteen. 



Balsamorhiza * deltoidea; slightly hirsute and puberulous; leaves deltoid-cor- 

 date, acuminate, somewhat undulate; stem one to three-flowered, upper leaves 

 alternate, linear-oblong ; sepals linear-lanceolate, the outermost longest and leafy, 

 spreading; rays twelve to twenty. 



Hab. Near the outlet of the Wahlamet, common, in wet, open places. Flowering in June. 

 Much like an Helianthus, and nearly allied to the preceding, but not tomentose, wholly green, and 

 the leaves more triangular, two to three inches across, four or five inches long, on very long pe- 

 tioles. Stem leaves small, oblong, scarcely opposite, long petiolate. Rays with infertile filaments. 



WYETHIA. (Nutt., Journ. Acad. Philad., Vol. VII., [1834.] ) 



ALAR90NIA, Decand. in part. 



Capitulum many-flowered, heterogamous; rays numerous, feminine, with rudi- 

 ments of stamens, (filaments;) radial florets tubular, the summit five-cleft, 

 revolute. Stigmas ligulate, filiform, hirsute on the under side, not conic at 

 the apex. Involucrum hemispherical, foliaceous, loosely imbricated in two 

 or three nearly equal series, longer than the disk, the inner leaves wider. 

 Receptacle convex, paleaceous, the palea foliaceous, carinate, embracing the 

 fruit. Achenium subquadrangular, striated or grooved, in the ray com- 

 pressed. Pappus a small, cartilaginous, multifid, unequal crown, naked, or 

 with one to four stout awns arising from the angles. — Dwarf or robust, He- 

 lianthoid plants, with long tap roots, and simple, mostly one-flowered, leafy 

 stems, the leaves large. Flower large, ray and disk yellow. 



Wyethia Helianthoides; very dwarf, somewhat hirsute, one-flowered; stem 

 leaves and sepals ciliate; leaves lanceolate, entire, scabrous on the margin, at- 

 tenuated below into a petiole ; outer sepals of the involucrum linear, the inner 



