190 LEAFLETS. 
Probably descended from the subalpine M. implexus of northern 
California, but with no such underground growth, and good 
characters of its own. 
M. PANICULATUS. Stems stout and somewhat fistulous, 1 to 
2 feet high, glabrous, remotely leafy, small plants simply race- 
_mose at summit, the larger in a manner paniculate, each axil 
“bearing a raceme instead of the usual peduncles ; root not seen : 
lowest leaves 3 or 4 inches long, peduncles and blade about equal 
as to length, the latter oval, obtuse, doubly dentate: pedicels 
and calyx as well as bracts minutely villous: corolla yellow, 14 
inches long, with short tube and broad limb. 
Witch Creek, San Diego Co., Calif., May, 1894, R. D. Alder- 
son. 
M. PRIONOPHYLLUS. Stems simple, 8 or 10 inches high from 
a short horizontal base or rootstock, not stoloniferous, probably 
only annual or biennial, densely leafy at base with somewhat 
.orhombic-ovate or deltoid-ovate obtuse leaves an inch long or 
more, on very short winged petioles, the cauline smaller and 
remote, of obovate outline and sessile, all definitely and not very 
finely pubescent and rather closely subserrate-dentate ; floral 
bracts ovate, cuspidate, not more pubescent than the proper 
foliage, calyx rather less so: corolla 3 inch long, wholly yellow ; 
the few flowers all long- pedicelled. 
Willow Spring, Arizona, June, 1890, Edw. Palmer, n. 527. 
A Further Study of Chaptalia. 
The reference is to pages 154 to 158 preceding, an enquiry into 
the tenability of CHAPTALIA as the name for a certain genus 
of American Muristacem'. What led to that study were the 
` C. alsophila and confinis of p. 158. The investigation of these 
two was not made without examination and comparison of a 
large collection of herbarium material in the National Museum 
1I use this name purposely as that of a Natural Family; one clearly distinct 
from all other so-called Composite ‘here is, in my view no true relation, and 
as but the merest analogy between these plants and either asters or Sun- 
