63 



tips, sub-coriaceous, strongly punctate, glutinous, heads numerous, 

 in crowded corymbs terminating the erect branches, small, 10-12- 

 flowered; involucre turbinate, the scales few, irregularly imbricated, 

 lanceolate, acute, with a green midrib, but no green tips; style-aj)- 

 pendages filiform-subulate, a little longer than the stigmatic por- 

 tion; akenes turbinate, minutely silky. 



San Bernardino Mountains, California, S. B. and W. F. Parisli, 

 No. 571, collected in September and October, 1881. 



A well-marked species, the largest of its genus, and most related 

 to B, arborescens^ Gray. 



\/Madia (Madaria) citrtodora. — A villous-hirsute, lemon- 

 scented annual a foot high; stem simple, leafy up to the corymbose 

 summit; leaves all alternate, entire, 2 inches long; heads small, in a 

 rather close, corymbose panicle; scales of the involucre with short 

 tips; rays short and inconspicuous, greenish-yellow; akenes short 

 and thick, for the genus, and rounded on the back, like those of 

 Hemizonia^ not wholly enclosed by the involucral scales ; chaff of 



the receptacle free. 



Hills about Yreka, California, collected by the writer in June, 

 1876. 



The species is rather anomalous by its akenes, which are as near 

 those of a Hemizonia as of a Madia ;. but it has strictly the habit of 

 the latter genus, and its aspect is that of the smaller forms of M, 



elegans^ Don. 



i^Hemtzonia (Calycadenia) hispida. — Stem virgate, stout and 

 rigid, 1^-3 Teet high, scabrous, and somewhat hispid; leaves narrowly 

 linear, 1-3 inches long, clothed toward the base with long setose- 

 hispid hairs, and bearing a tack-shaped gland at summit; heads large, 

 paniculate, or in short-peduncled, axillary clusters; rays 3-5, sulphur- 

 yellow, deeply 3-cleft; akenes of the ray commonly smooth except 

 on the angles and at the summit; those of the disk usually clothed 

 throughout with a short, appressed, silky pubescence, and bearing a 

 pappus of about 10 nearly equal subulate, barbellate-scabrous, chaffy 



scales. 



Collected by the writer on a sandy plain in Merced County, near 



Atwater Station, California, in September, 1881. 



In technical character the species is near H, Douglasii, Gray; 

 but it is sufficiently distinguished by its stout, coarse habit, and the 

 much larger size of all the parts of both its flowers and fruit. Dr. 

 Gray considered it too near H, spicata, Greene, which was published 

 in the Bulletin for February, but that has, together with its white, 

 or rose-tinted rays, very differently shaped, and almost white-villous 



ray-akenes. ^ 



i^ Hymenopappus robustus. — Floccose-tomentose; stem about 2 

 feet high from a biennial root, stout and rigid, simple up to the 

 corymbose summit, leafy throughout ; none of the leaves entire, all 

 but the upper cauline 2-3-pinnately parted, the lobes hnear, entire; 

 heads large, in a loose, or, more commonly, rather compact corymb; 

 scales of the involucre 10-12, obovate, with petaloid margms; akenes 

 very villous; pappus half as long as the corolla-tube, its spatulate 

 scales coarsely lacerate-toothed. 



