300 
of the city of Oaxaca, altitude 7,500 feet, September 10 to 20, 1894 (No, 1366) ; La 
Parada, altitude 7,500 to 8,500 feet, August 19, 1894 (No. 1007); west slope of Mount 
Zempoaltepec, altitude 7,700 to 8,000 feet, July 5 to 13, 1894 (No, 607); mountains 
near Tlapancingo, altitude 6,000 to 8,000 feet, December 7, 1894 (No, 2085); on the 
top of Sierra Madre, near Chilpancingo, Guerrero, altitude 9,000 to 10,200 feet, 
December 24, 1894 (No. 2213); also by Rev. Lucius C. Smith, mountains of San Juan 
del Estado, altitude 7,500 feet, August 13, 1894 (No. 119). 
We have seen no authentic specimens of £. longirameum. Our specimens differ 
from the description in having leaves cordate-ovate rather than ‘ ovato-ellipticis.” 
Eryngium montanum Coult. & Nose, sp. nov. 
Stems 6 to 7.5 em. long; leaves numerous at base, linear, 2 to 3.2 dm. long, 12 to 15 
mm. broad; the margins with numerous spiny teeth, single and much shorter than 
the breadth of the leaves; stem leaves much reduced and mostly alternate; stems 
often monocephalous or sometimes bearing 3 or 4 heads; heads oblong, obtuse, 25 to 
30 mm. long; involucral bracts numerous, linear, entire or with a few teeth at base, 
shorter than the heads; bractlets of the involucels linear, rigid. 
Collected in wet meadows, Sierra de Clavellinas, altitude 9,000 feet, by Mr. E,W. 
Nelson, September 10 to 20, 1894 (No. 1386); and also by Mr. C, G, Pringle, October 
17, 1894 (No. 6040). 
Eryngium nasturtiifolium Juss. ; Delar. Eryng. 46, t. 17 (1808). 
Collected by Mr. E. W. Nelson from the low damp plains about Tlacotalpan, Vera 
Cruz, May 21, 1894 (No. 518). 
Eryngium nelsoni Coult. & Rose, sp.nov. - 
Stems from a cluster of slender fibrous roots, 15 to 20 em. high, somewhat branch- 
ing; leaves spatulate, obtuse, tapering at base into a winged petiole, with callous 
margins, crenate and apiculate, 38.5 to 7.5 cm. long including the petiole; upper 
leaves reduced, opposite and more or less lobed; peduncles either single or in 
threes, slender, 6 to 15 em. long; involucral bracts about 10, little if at all longer 
than the oval heads, linear-oblong, apiculate, entire or often with a small tooth on 
the side, greenish or bluish without, white and shining within; involucel bractlets 
linear, rigid, about the length of the flowers; fruit obovate, with small scales, 
especially above, 
Collected by Mr. E. W. Nelson near La Parada, altitude 7,500 to 8,500 feet, August 
19, 1894 (No. 1011), and on mountains about Yalalag, altitude 6,000 feet, August 1, 
1894 (No. 972). 
Near FZ. scaposum, but apparently distinct. 
Eryngium scaposum Turcz. Bull. Soc. Nat. Mose. xx, pt.1, 172 (1847). 
Collected by Mr. E, W. Nelson near Reyes, altitude 7,500 to 10,400 feet, October 
20, 1894 (No. 1747), and in the vicinity of Sierra de San Felipe, altitude 9,500 to 
11,000 feet, 1894 (No. 1091); also by Mr. C. G. Pringle on Sierra de San Felipe, alti- 
tude 10,400 feet, June 26 and August 25, 1894 (Nos, 4834 and 5538). 
We have no authentie specimens of /. scaposum, in fact the species has not been 
collected since the original collection made by Galeotti from this same State. The 
leaves are oblong, with tapering bases, hardly ‘‘oblongo-lanceolatis.” The scapes, 
while usually bearing single heads, often in vigorous plants produce additional heads 
from the axils of the leafy bracts. 
This species appears to be near I. gracile. 
Eryngium seatoni Coult. & Rose, Proc. Amer, Acad. xxviil, 118 (1893), 
Stem erect, stout, 9 to 12 dm. high; leaves linear, parallel-nerved; radical leaves 
3 to 3.75 em. long, 8 to 10 mm. wide, the margin toothed with paired spines, one much 
longer and about equal to the breadth of leaf; stem leaves all alternate, with mar- 
ginal spines often in threes and fours, clasping at base; heads few, terminal and 
axillary, shortly pedunculate, oblong, 20 miu. long; involucre of 14 or 15 bracts, 
