404 DESCRIPTIONS OF NEW SPECIES 



linear, acuminate, sessile, narrower towards the base; capituli conglomerate, 

 sessile, terminal; involucrum ovate, the scales yellowish, oval or oval-oblong, 

 obtuse. 



Hab. On the shores of the Pacific, at the estuary of the Oregon: rare. It has almost exactly 

 the appearance of Heliclirysum graveolens, is heavy-scented, and somewhat glandular beneath the 

 copious pubescence. About twelve to eighteen inches high. Leaves one to two inches long, one 

 to two lines wide, acute or acuminate; scales of the capitulum pale yellow. (I have seen but two 

 specimens in a young state: it may, probably, branch at a later period.) It possesses several rows 

 of feminine florets, and is therefore a true Gnaphalium. 



Gnaphalium filaginoides, (Hooker and Arnot, Bot. Beechy.) A slender, 

 often simple-stemmed species; radical leaves nearly smooth, or smoother, the 

 rest whitely tomentose and apiculate. Stem simple. Flowers in sessile, sub- 

 terminal clusters; capituli sharply ovate, yellowish, with the floral leaves 

 broader, and more whitely and densely tomentose. 



Gnaphalium * microcephalum; sufFruticose ? densely and whitely lanuginous; 

 stem erect, simple; leaves lanceolate, apiculate, sessile, narrower towards the 

 base, nearly all similar; capituli conglomerate, in a short spike, ovate; scales 

 scariose, acute, white. 



Hab. St. Diego, Upper California: rare. About a foot high, the stem rather woody beneath 

 the dense white tomentum. Leaves one to one and a half inches long, two to three lines wide, 

 white on both sides, with a blackish apiculate point. Flowering clusters confluent in a short spike 

 or mass about two inches in length, involucrum very floccose at base, white and silvery, herma- 

 phrodite florets about five. Somewhat allied, apparently, to G. lanuginosum, but it strongly resem- 

 bles some of the species from the Cape of Good Hope. (I have seen but a single specimen.) 



Gnaphalium spicatum. 



Hab. St. Barbara, Upper California. The upper surface of the leaves green, but somewhat 

 deciduously tomentose. 



Gnaphalium sylvaticum. 



Hab. In Labrador. (Herb. Schweinitz.) The low form, with dark scales to the involucrum. 



Gnaphalium ^ustulatum; 2/, herbaceous, erect; stem simple, terete; the whole 

 plant whitely tomentose; stem somewhat floccosely pubescent; leaves oblong- 

 spathulate, obtuse, mucronulate, the upper ones narrower, sessile, (not decur- 

 rent;) capituli oblong, aggregated in the axills of the upper leaves into a dense, 

 continuous, short, oblong spike ; scales of the involucrum lanceolate and linear, 

 acute, brownish towards the points. 



Hab. On the plains of the Platte, towards the Rocky Mountains, and near St. Barbara in Upper 

 California. Nearly allied to G, spicatum, but without the decurrent leaves, which are whitely 



