Part 2, 1917] AGARICACEAE 77 
Amanita elliptosperma Atk. Ann. Myc. 7: 336. 1909. Described from Chapel Hill, 
North Carolina. Resembling white forms of Venenarius phalloides, but said to have ellipsoid 
spores. 
Amanita elongata Peck, Bull. N. Y. State Mus. 131: 33. 1909. Described from speci- 
mens collected by Sterling in Pennsylvania, July, 1907, on damp grassy ground in the borders 
of woods. Resembling Vaginata albocreata, but having a well-developed annulus. From yel- 
low forms of Venenarius phalloides, it differs in its very long, slender stipe and the absence 
of a free limb to the volva. In color and general appearance, except the long stipe, it greatly 
resembles Venenarius Frostianus. Further field studies are highly desirable. 
Lepiota gemmata Morgan, Jour. Myc. 12: 202. 1906. Collected near Preston, Ohio, on 
rich soil or rotten wood. Probably a form of Venenarius solitarius. 
Amanita junquillea Quél. Bull. Soc. Bot. Fr. 23: 324. pl. 3, f. 10. 1876. Held by some 
to be equivalent to Venenarius russuloides, but there seems to be little foundation for this 
opinion. 
Amanita magnivelaris Peck, Ann. Rep. N. Y. State Mus. 50:96. 1898. Described from 
Port Jefferson, New York, and said by the author to differ from. Amanita verna in its large, 
persistent annulus; its elongate, downwardly tapering bulb; and especially in its ellipsoid 
spores. . 
Amanita mappa Fries, Epicr. Myc. 6. 1838. 
Agaricus pantherinus DC. Fl. Fr. 6:52. 1815. Venenarius pantherinus Murrill, Myco- 
logia 5: 80. 1913. Described from France, and found in woods and groves throughout 
Europe and parts of Asia. I have been unable to find any typical specimens from this country. 
In the case of V. phalloides, we have white and dark forms abundantly represented, and it 
would seem natural to expect the dark forms of V. pantherinus also if the species occurs here. 
Beardslee has studied V. cothurnatus in North Carolina and V. pantherinus in Sweden, and he 
believes the two to be identical. He found the spores of both species to be globose in fresh 
specimens, changing to ellipsoid after the dried plants were kept for several weeks. Amanita 
umbrina Pers. Syn. Fung. 254. 1801 refers to the usual dark European form of this species. 
DeCandolle evidently did not use Persoon’s name in Agaricus because it was preoccupied in 
that genus. 
Amanita submaculata Peck, Bull. Torrey Club 27: 609. 1900. Known only from a 
single specimen, accompanied by a sketch, sent to Dr. Peck from North Carolina by Miss 
Wilson, who, pronouncing it edible, must have collected more than one hymenophore. If it 
had not been pronounced edible, I should be inclined to classify it as a dark-centered form of 
Venenarius phalloides, in which most of the volva had been carried up on the surface of the 
cap. The type is sterile, and further field study of the plant is highly desirable. 
Agaricus virosus Fries, Epicr. Myc. 6. 1838. This species has often been confused with 
white forms of Venenarius phalloides, from which it is said to differ in its strong odor and 
rough stipe. 
Subtribe 2, PLUTEANAE* 
Pileus irregular, dimidiate or resupinate. 52. CLAUDOPUS. 
Pileus regular, sometimes eccentric in Pleuropus. 
Volva and annulus wanting. 
Stipe cartilaginous. 
Margin of pileus incurved when young. 
Lamellae decurrent. 53. Eccinia. 
Lamellae adnate or adnexed. 54. LEPTONIELLA. 
Margin of pileus straight and appressed when young; lamellae free or 
adnexed. 55. NOLANEA. 
Stipe fleshy. . 
Lamellae decurrent, rarely varying to adnate. 56. PLEUROPUS. 
Lamellae sinuate or adnexed. 
Spores not angular, rosy-ochraceous in mass. 57, LePISTA. 
Spores angular, rose-colored in mass. 58. ENTOLOMA, 
Lamellae free. 59. PLUTEUS. 
Volva wanting, annulus present. 60. CHAMAEOTA. 
Volva present, annulus wanting. 61. VoLvaRiopsis, 
* See N. Am. Flora 9: 237 for a key to the four subtribes of the Agariceae. The 
Pluteanae are distinguished by their spores, which are rosy or rosy-ochraceous in mass and 
often angular in outline. 
