541 
Mapy of these are annuals provided with long taproots. Others are 
deep-rooted perennials. Asclepias arenaria is furnished with a long and 
slender upright rootstock proceeding from a fleshy vertical root. A 
specimen dug up by myself showed a rootstock about 5 feet in length, 
with the diameter of a lead pencil. At the base of this was a fleshy 
root 1 inch in diameter and 6 inches in length, but cut off at the lower 
end by the spade. 
Mr. Thompson did not collect the cryptogams. Of ferns I observed 
none. One species of Equisetum is found along the streams, and JMar- 
silia vestita is common in the buffalo wallows. 
Fairy rings were frequent this season on the uplands. They vary 
from a few feet to many rods in diameter. Some were formed by a 
species of large Agaricus, apparently A. morgani, but most were due 
toa large puffball (Lycoperdon cyathiforme). ‘These occurred in large 
numbers and made nearly perfect circles, 
In the following list of the species collected by Mr. Thompson the 
remarks following the designation of locality are taken from the col- 
lector’s notebook. 
CATALOGUE OF SPECIES. 
RANUNCULACES. 
Cyrtorhyncha cymbalaria (Pursh) Britton, Mem. Torr. Club, v, 161 (1894); 
Ranunculus cymbalaria Pursh, FI. ii, 392 (1814). Originally found “in saline marshes 
near the salt works of Onondaga, New York.” 
Syracuse, Hamilton County (No. 108). Collier's ranch, 7 miles above town, on the 
Arkansas River; very common. 
PAPAVERACESA:. 
Argemone alba Lestib. Bot. Belg. ed. 2, iil, 133 (1799); 4A. albiflora Hornem, 
Hort. Hafn. 489 (1818-15). 
Syracuse, Hamilton County (No. 144), Common. 
BRASSICACEA. 
Erysimum asperum (Nutt.) DC. Syst. ii, 505 (1821); Chviranthus asper Nutt, Gen. 
ii, 69 (1818); Erysimum lanceolatum Pursh, FI. ii, 436 (1814), not R. Br. Type distri- 
bution, ‘On the plains of the Missouri, commencing near the contluence of White 
River.” Pursh’s plant was collected ‘on the banks of the Missouri.” , 
Shiloh, Hamilton County (No. 122). Frequent on upland prairie. 
CAPPARIDACES.. 
Cleome serrulata Pursh, Fl. ii, 441 (1814). Type found ‘‘on the banks of the 
Missouri.” 
Springfield, Seward County (No. 185). Common. 
Cristatella erosa Nutt. Journ. Acad. Phila. vii, 86 (1834); Cleome, n. sp. Torr. 
Ann. Lye. N, Y. ii, 168 (1827). ‘‘This plant was also found by Mr. Nuttall in the 
Arkansas Territory in 1819.” This is No, 25 of Torrey’s list of James’s plants. The 
type data given in Torrey and Gray! are ‘‘In sand, Arkansas, Dr. James, Texas, 
Drummond.” 
Syracuse, Hamilton County (No. 93). Rather common on the sand hills. 
1Torr. & Gr. FI. i, 124 (1838), under C. jamesii. 
