224 Rhodora [DECEMBER 
Erythraea Centaurium, Pers. Found at Concord in 1890, not 
seen since. 
Sabbatia gracilis, Salisb. One station in Concord, found in 1397. 
Phlox subulata, L. Sandy roadsides, Acton. 
Physalis Virginiana, Mill. Field in Sudbury. 
Utricularia resupinata, B. D. Greene. Ponds in Concord, Acton 
and Lincoln. 
Utricularia gibba, L. Fairhaven Bay, Concord. 
Amarantus hypochondriacus, L. Persistent for four years on a 
dump at Concord. 
Sagittaria natans var. gracillima, Watson. Concord river. 
Sagittaria teres, Watson. Sandy pond, Lincoln. 
CONCORD, Mass. 
LEPIOTA RHACODES. 
H. WEBSTER. 
(Plate 11.) 
For several years Lepiota rhacodes Vitt., has been conspicuous at 
the autumn exhibitions of the Boston Mycological Club. Although it 
has been reported from various parts of the country, it seems nowhere 
to be so well known, or at any rate so familiar as an edible mushroom, 
as it is in the neighborhood of Boston, where it annually fruits in gener- 
ous abundance in numerous places. In size and general appearance it 
resembles the common Parasol Mushroom ( Zefiota procera Scop.), to 
which it is so closely related that Berkeley * speaks of intermediate forms, 
difficult to refer to either species, and Massee? reduces it to a variety. 
To Vittadini, however, the two species seemed absolutely distinct, and 
his conclusion will seem amply justified to any one who will compare 
fresh material in all stages with his careful drawings and minutely accu- 
rate descriptions. For the benefit of New Englanders and others who 
cannot do this, and who yet may like to try the edible qualities of this 
fungus, if they find it, a few notes from fresh specimens are here offered. 
The young buttons, from the size of a peato that of a hazelnut, 
are globose and white, and hold the developing cap entirely enclosed 
1 Outlines of British Fungology, 92, Pl. 5, f. 6. 2 British Fungus Flora III; 234. 
3 Funghi Mangerecci 158-162, Pl, XX, and 182-188, Pl. XXIV. 
