103 



Sclerocarpus spatiilatuSj n. sp. Several feet high with widely spreading hranches : 

 leaves alternate, 3 to 5 inches long inclnding the petioles, coarsely serrate, a lit- 

 tle scabrous above, apprcssed-pnbescent below: involucre bracts 3 to 6 lines 

 long, hirsute: rays yellow: central disk-flowers sterile. — Very common in woods 

 and along streams about Alamos. September 16 to 30. No. 649. 



Montanoa, sp. Tliree feet liigh with several stems: leaves op])oaite, ovate-lanceo- 

 late ;i to 5 inches long by 2 inches broad, actuninate, 3-nerved, snb-ontiro, hispid 

 above, villous-pubescent beneath: involucre bracts very small (2 lines long) niu- 

 croiiato ; chalfy bracts large (ti lines loug), glabrous, with mucronate tip reflexed : 

 rays not seen : disk-corolla 2 linos loug; proper tube slender (1 lino long), swol- 

 len at base, abruptly enlarged into the loug slightly puberulent throat: style 

 with bulbous base, hardened in age, attached or deciduous from the akeues : 

 akenes glabrous, top-shaped, 1^ lines long, without pappus. — ^Alamos. March 

 26 to April 8. No. 361. A single plant found half way up the mountain side. 

 It is called "'Bolallaqui ;" it exudes from the stem a gum which is mnch valued 

 by the common people for its healing properties. Although the number of rays 

 is not known, it clearly belongs to Do Caudolle's § Acanthocaiyhae. By comparing 

 the flowers with those of M. grandijlora (Palmer's No. 492 of 1886), I find that 

 the corolla is shorter and less pubescent and the latter lacks the bulbous style. 

 M, suMruncata Gray has still shorter corolla (IJ lines long) with a very short 

 proper tube and a more abrupt throat, bnt possesses the bulbous base of our plant. 

 The akenes of M. subtruncata have a thick margin forming a low crown which 

 is not possessed by the other two. M. patens has a corolla and akene with crown 

 similar to M. subtruncata, but with or without a small bulbous style-base. There 

 seem to bo very good specific characters in the structure of the disk-Howers. 



Montanoa (Enocoma), sp. Large, loose shrub, 8 to 10 feet high : leaves 2 to 6 inches 

 long (including the ^ inch petiole), lanceolate, with acuminate tip and cuueate 

 base, scabrous above, hirsute below, coarsely serrate or sub-entire : flowers in 

 corymbose clusters : pedicels slender, hairy : involucre in one series of about 5 

 bracts : rays 2 to 4, very small, white : disk-flowers 3 to 5: chaff very hairy on 

 the back, narrowed into a mucronate tip. Alamos. March 26 to April 8. No. 

 3<J4. This is a loose-growing shrub with many stems, and the habitof the elder. 



Zexmenia podocephala Gray. About 3 feet high. Only a single plant seen near 

 the ba&e of the mountain. Alamos. March 26 to April 8. No. 363. 



Zexmenia fruticosa, u. sp. Upright shrub, 8 feet high : leaves lanceolate to ovate- 

 lanceolate, 2 to 4 inches long sharply serrate, scabrous: heads terminating the 

 branches, or in corymbs of 3 to 5 : involucre bracts in 2 or 3 series, imbricate, 

 hispid: rays small, yellow: akenes slender, 2 lines long, with awns as loug or 

 longer. — Common along streams and on mountain side about Alamos. September 

 16 to 30. No. 645. 



Viguiera montana, n. sp. Two to three feet high, slender, scabrous ; leaves oppo- 

 site (except some upper bract-like ones), linear-lanceolate, 4 to 5 inches long by 3 

 to 7 lines broad, acuminate, sessile, 3-nerved, scabrous above, prominently reticu- 

 lated below : head turbinate, 6 lines long, with bracts closely imbricated in 5 or 

 6 series: bracts oblong, obtuse, or abruptly mucronate, conspicuously ciliate, 

 with soft white hairs: rays small, oblong, 5 or 6 : disk-flowers 2 lines long: 

 akenes 2 to 2^ lines long, villous-pubescent: pappus conspicuous, with two un- 

 equal awns and with several intermediate pale», laciniate, a line long, — Near 

 the sumuiit of the mountain, under shade of oaks ; at the time of gathering, 

 almost past blooming. Alamos. March 25 to April 8. No. 340. A peculiar 

 Viguiera, differing from all other species we have examined, in its many series 

 of imbricating involucre bracts ; in this respect it is most like V. Purisimce. The 

 stems are slender and purplish and the base has a tuft of wool as in the native 

 species of Perezia. Alamos. March 30 to April 8. No. 340. It resembles V, 

 blcpharolepis, but the heads are smaller, bracts more numerous and glabrous on 

 the back. 



