110 ■* 



i 



Dr. Bolander, and was obtained by the present writer in Napa 

 County, in the autumn of 1874 ; but its specific character, as distinct 

 from If. luzulaefoUa, DC, was first recognized about a year ago on 

 the appearance of specimens freshly collected by Mr, Cleveland at 

 Allen Springs, in Lake County. 



In characters of flower and fruit it is so very like H, luzulaefolia 

 that I detect no difference save in the manner in which the involucral 

 scales hold the akenes In the latter their margins are folded over 

 the inner face of the akene, so that the seeds falling to the ground 

 carry the scales with them; but in H. Clevelandi they are in this re- 

 spect wholly free, and falling, leave the scales still adhering to the 

 receptacle. 



The pubescence of the two is, however, very dissimilar, that of 

 the one being appressed villous, and even floccose-woolly, and that of 

 the other quite stiffly and setosely hirsute, H. Clevelandi h^s, more- 

 over, fewer and larger glands* But the most obvious distinction be- 

 tween the two species is one so clear as to call for a modification of 

 the character of the section of the genus to which they belong. I 

 refer to the strictly racemose inflorescence of the new species ; that 

 of the other members of the group being uniformly corymbose. 



Hemizonia (Calycadekia) cephalotes. — Stem a foot or more 

 high, simple, or with some assurgent branches from the base ; lower 

 portions of stem and branches leafy, with smaller leaves fascicled in 

 the axils ; heads densely capitate-crowded at, and near the summit ; 

 rays seldom more than one' or two in each head, or often wholly 

 wanting, and the disk-flowers as often reduced to three or even two; 

 herbage yielding a pleasant balsamic fragrance.- — Calycadenia cepha- 

 lotes^ D.C, Prod, v., pp. 695, and Torr. & Gray Fl. ii., p. 401. Hefni- 

 zonia 7iiuUiglandulosa^ Gray, Bot, Cal. i., p. 366 in part. 



The study of abundant specimens from all parts of the State, as 

 well as careful observations on living plants, convinces me that this 

 plant well merits specific rank. True H. fmdfig^landulosa has an en- 

 tirely different habit, the whole plant, from base to summit of thd 

 stem, being evenly branched, so as to form a contracted panicle, the 

 heads freely scattered at the ends of the numerous branchlets. Its 

 herbage has also a very different, and disagreeable odor. 



Hemizonia (Calycadenia) oppositifolia. — Stem slender, a foot 

 or less in height, simple or with spreading, opposite branches ; leaves 

 narrowly linear, all of them opposite ; heads in pairs, closely sessile, 

 one in the axil of each leaf, and an odd one at the summit of each 

 branch ; rays 3, very deeply 3-cleft, white or rose-color, changing to 

 rose-purple ; akenes and pappus much as in H. cephalotes ; tack- 

 shaped glands very few and small. 



Collected near Chico, May 30, 1882, by Dr. C. C. Parry. 



The species is near akin to the preceding, but well characterized 

 by the strictly opposite arrangement of the leaves, branches and 

 heads, a character quite new in the genus, and also by the remark- 

 able paucity of glands, these being amber-colored, not black, as 

 in the allied species. 



Verbesina venosa.— Shrubby, two feet or more high, the 

 branches stout ; leaves scabrous-puberulent, deep green, with coarse 



