BRIEFER ARTICLES. 
Deanea, a new genus of Umbellifere from Mexico.—(WITH PLATE 
XXVII.}—We have just completed a report upon what is perhaps 
the largest and most valuable collection of Umbelliferze ever made in 
Mexico. This collection, the joint work of Mr. E. W. Nelson, of the 
Department of Agriculture, and of the veteran collector, Mr. C. G. 
Pringle, of the Gray Herbarium, comprises more than fifty species and 
contains four undescribed genera. One of these, Veogoezia, has re- 
cently been published by Mr. W. Botting Hemsley, of Kew Gardens. 
We now present a description and illustration of a second one. 
Deanea, n. gen. (PEUCEDANE#.)—Calyx-teeth obsolete. Fruit oval, 
glabrous, with 2-parted carpophore and broad conical stylopodium 
bearing a short style. Carpel, with dorsal and intermediate ribs thick- 
ened, filiform; lateral wings broad and thin, surrounding the fruit. 
Oil-tubes, one to three in the intervals, six to eight on the commis- 
sural side. Seed strongly flattened; the face with a narrow sulcus 
which connects with a narrow cavity extending laterally across the 
face of the section, making a strongly involute seed.—Short caulescent 
perennials, with filiform or tuberous roots, ternately or pinnately dis- 
sected leaves, involucre wanting or of a single bract, involucels © 
small linear bractlets, and purple flowers. 
There is a general resemblance in habit to Rhodosciadium Watson, 
but the obsolete calyx-teeth, more prominent stylopodium, and espe- 
cially the peculiar cavity of the seed face, plainly separate it. Prionos- 
ctadum Watson has a somewhat similar seed-face, but its species are 
high caulescent, even shrubby plants, with much larger and more 
ee ribbed fruit, depressed stylopodium and short calyx- 
teeth. 
The Senus is dedicated to Mr. Walter Deane, of Cambridge, Mass- 
whose interest in American botany and botanists deserves commem- 
oration. 
_Deanea nudicaulis, n. sp—Shortly caulescent or acaulescent, 3 to 5" 
high, from thick branching roots: radical leaves dark green, two to 
three times ternate; leaflets ovate, lobed and toothed, acute, glabrous; 
stem leaves reduced to inflated sheaths, with one to three small leaf- 
lets, often opposite: fruiting rays (three to eight) spreading, 2.5 to 8 
long, slightly scabrous on the angles: pedicels 3 to 6™™ long: fruit or 
in diameter; wings thin, as broad or half as broad as body; oil-tubes 
three to four in the intervals, six on the commissural side. 
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