298 
long; involneels conspicuous, much longer than the flowers, 1.8 to 2.5em. long; rays 
15 to 20, nearly equal, 3.6 cm, long; pedicels 5 em, long. 
_ Collected by Mr. E, W. Nelson on the southwest side of the summit of Mount Zem- 
poaltepec, altitude 10,000 to 11,000 feet, July 5 to 13, 1894 (No. 646), 
EXPLANATION OF PLATE.—Fig. a, dorsal view of carpel, enlarged 5 diameters, ), cross section of 
the fruit, enlarged 8 diameters. 
Daucus montanus Humb. & Bonp.; Schult. Syst. vi, 482 (1820). 
Collected by Mr. E. W. Nelson on the west slope of Mount Zempoaltepec, alti- 
tude 7,700 to 8,000 feet, July 5 to 13, 1894 (No. 571); and by Mr. C, G, Pringle on 
Sierra de San Felipe, altitude 7,500 feet, September 11, 1894 (No. 4884); also by Mr. 
E. W. Nelson near the road between Juquila and Nopala, altitude 6,000 feet, March 4, 
1895 (No, 2407). 
Deanea Coult. & Rose, Bot. Gaz. xx, 372 (1895). 
Calyx teeth obsolete. Fruit oval, glabrous, with 2-parted :arpophore and broad 
conical stylopodia bearing short styles. Carpel with dorsal and intermediate ribs 
thickened-filiform; lateral wings broad and thin, surrounding the fruit. Oil-tubes 1 
to 3in the intervals, 6to8 on thecommissural 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 dissected leaves, 
involucre wanting or of a single bract, involucels of small linear bractlets, and 
purple tlowers. 
There is a general resemblance in habit to Rhodosciadium Wats., but the obsolete 
salyx teeth, more prominent stylopodium, and especially the peculiar cavity of the 
seed face, plainly separate it. DPrionosciadium Wats. has a somewhat similar seed- 
face, but its species are high-caulescent even shrubby plants, with much larger and 
more prominently ribbed fruit, depressed stylopodium, and short calyx teeth. 
The genus is dedicated to Mr. Walter Deane, of Cambridge, Mass., whose interest 
in American botany and botanists deserves commemoration, 
Deanea nudicaulis Coult. & Rose, Bot. Gaz. xx, 372 (1895). PLATE VI}, 
Shortly caulescent, or acaulescent, 3 to 5 dm. high, from thick branching roots; 
radical leaves dark-green, 2 to 3 times ternate; leaflets ovate, lobed and toothed, 
acute, glabrous; stem leaves reduced to inflated sheaths, with 1 to 3 small leaflets, 
often opposite; fruiting rays (3 to &), spreading, 2.5 to 5 em. long, slightly scabrous 
on the angles; pedicels 3 to 6 mm. long; fruit 5 mm. in diameter; wings thin, as 
broad or half as broad as body; oil-tubes 2 to 4 in the intervals, 6 on the commis- 
sural side, 
Collected by Mr. C. G. Pringle on the Sierra de San Felipe, altitude 7,500 to 10,000 
feet, May 28, 184, and August 3, 1894 (No. 4663); and by Mr. E. W. Nelson on the Sierr: 
de San Felipe, at an altitude of 10,000 to 11,000 feet, September 20 to 30, 1894 (No. 1087). 
EXPLANATION OF PLATE.—Fig. 1, flowering plant; 2, fruiting umbel; 3, dorsal view of carpel; 4, 
cross section of same; 3 and 4 enlarged. 
Deanea tuberosa Coult, & Rose, Bot. Gaz. xx, 373 (1895). 
Shortly caulescent, 5 to 7.2 dm. high, froma globose tuber; leaves twice pinnate; 
leaflets sharply toothed or cleft into linear segments, slightly scabrous beneath; 
peduncle 2 to 3. dm. long; rays 5 to&, unequal, 1.2 to5cm, long; pedicels 2 min. long; 
fruit about 6 mm. in diameter; wings thin, about as broad as body; oil-tubes 1 to 3 
in the intervals, 6 to 10 on the commissural side. 
Collected by Mr. C. G, Pringle in low meadows, valley of Toluca, State of Mex- 
ico, October 3, 1892 (No. 4295). Distributed by Mr. Pringle as a Rhodosciadium. 
Eryngium alternatum Coult. & Rose, sp. nov. 
Stem 9 to 18 dm, high; radical and lower stem leaves linear, 4.5 dm. long, 12 mm. 
broad; marginal spines in pairs, one very long and one short, or long and short sepa- 
‘From the Botanical Gazette by the kind permission of the editors. 
