1895] Composite from Guatemala. 47 
In the original description Bentham questions the generic 
reference, a question which may still be seriously raised. 
Were not the genus Aster so all-embracing it would seem 
better to separate this species from it generically. It has no 
stamens in the ligulate flowers, the styles are very short and 
obtuse, the ligules are exceedingly small, and the whole habit 
of leaf reduction and spiny phyllocladia is peculiar. 
ASTER JAMAICENSIS Less. (Erigeron Famaicensis L.)— 
Santa Rosa, Depart. Santa Rosa, 3—4,000°, June 1892, Heyde 
& Lux 3,363. This species of the West Indies has also been 
found occasionally in southern Mexico. I very much doubt 
its proper reference to Aster. 
CONYZA CORONOPIFOLIA HBK. (Incl. C. hirsuta HBK.) 
—Chiul, Depart. Quiché, alt. 8,000%, April 1892, Heyde & 
Lux 3,378. Exceedingly variable in foliage even on the 
same plant. Our specimens represent the very hirsute form 
with linear-lanceolate mostly entire (but frequently 1- or 
2-lobed) leaves described by Kunth as C. hirsuta, and usu- 
ally maintained as a distinct species. The two, however, 
completely intergrade, and different branches of the same 
plant will sometimes show all the differences between C. 
coronopifolia and C. hirsuta. 
MALLINOA, n. gen. of INULOIDEA?—Heads many-flowered, 
homogamous, the flowers perfect: involucre campanulate, 
with three or four series of imbricate striate bracts, the outer 
Ones shorter: corolla tubular, somewhat narrower below and 
with a much constricted and easily separable base, 5-toothed, 
the teeth hairy outside: anthers appendaged, sagittate at 
base: style-branches long, clavate and obtuse, the conspicu- 
ous hairy appendages representing more than half the length: 
achenes linear, 5-angled, with a prominent indurated base and 
Constricted above to meet the distinct pappus ring which 
€ars numerous stout barbellate bristles as long as the corolla. 
Mallinoa corymbosa, n. sp.—Herbaceous, 40 to 50™ high, 
leafy and hairy at base, naked, smooth and corymbosely 
branching above: leaves opposite, more or less woolly pubes- 
cent on both sides, especially along the venation, rather long 
Petioled, ovate and dentate, obtuse, paler and conspicuously 
reticulate beneath, 3 to 7™ long (blade), above reduced to 
facts: heads about 5™™ high, solitary at the ends of the 
elongated corymbose branches: involucral bracts smooth and 
Striate, oblong, the outer series somewhat shorter, the inner 
ee 
