.e.- 446 DESCRIPTIONS OF NEW SPECIES 
te Pe: ra 
Erythremia aphylla; radical leaves linear? stem dichotomous, striate, nearly 
leafless, with three to five capituli; stigmas clavate; anthers distinctly bisetose. 
Prenanthes aphylla, Nurr. Gen. Am., Vol. IL, p. 123. Lygodgumig? aphylla, 
Decand, Vol. VII., p. 198. 
Has. Discovered on the Island of St. Marys, in Georgia, by Dr. Baldwyn. Stem twelve to 
eighteen inches high. Involucrum, caliculum, and florets, as well as their colour, exactly as in the 
preceding; the pappus, however, is scarcely more than scabrous. Lower part of the stem with one 
or two leaves. 
HIERACIUM. (Linn.) 
Hizracium marianum. Oss. This species is very nearly allied to H. sca- 
brum, but is well distinguished by the achenium, which is attenuated above, 
and so far rostrate as to be precisely that of Crepis! 
Meracium barbatum, (Nutr. in Journ. Acad. Nat. Sci. Philad., Vol. VIL.) 
This species also inhabits the western plains as far as the Rocky Mountains. 
The achenium, as in the U esareau is attenuated above, but not so much as in 
the preceding. 
' Hieracium * macranthum; aoe smooth and green; stem erect and simple, 
ms eae’ branched at the summit; leaves numerous, sessile, linear-lanceo- 
late or lanceolate, incisely and irregularly serrate, acute, scabrous on the mar- 
gin; peduncles pubescent; involucrum blackish, but nearly smooth; sepals 
lanceolate, imbricate in about three series, appressed; achenium nearly black 
and truncated. H. umbellatum, Hooxer, Flor. Bor. Am., Vol. L., p. 300. 
Has. In the forests of Oregon, near the Wahlamet. N early allied to H. Canadense, and still 
more nearly to H. wmbellatum. Pubescence very sparing, stellate. The involucrum never squar- 
rose. From two to three feet high, and sometimes robust, with the leaves narrower; when slender, 
with the leaves broader. Perhaps not sufficiently distinct from A, me the re sashie how- 
ever, are more gen? ally ee ew and never so narrow. 
* 
Mieracium Scoulerz. _ 
Has. Common near the Wahlamet. Considerably allied to some varieties of H. Gronovii. 
_ Meracium ali i florum. 
~ Has, Common round Fort Vancouver, on the Oregon, in shady woods, where it attains the height 
of two to three feet. The stem is rigidly erect, and smooth to a few inches from the root, where 
it presents long hairs like H, Gronovii, to which it is undoubtedly allied, and yet as certainly 
