THE PHALLOIDE OF THE UNITED STATES. 
Il. SYSTEMATIC ACCOUNT." 
EDWARD A. BURT. 
PHALLOIDEA, Fries. Syst. Myc. 22281. 1823. 
Terrestrial fungi with mycelium forming ropelike strands 
and bearing spherical or ovoid fructifications—the ‘eggs — 
which consist of a receptaculum and gleba enclosed by the 
volva; volva with thin outer and inner layers separated from 
each other by a broad gelatinous layer; receptaculum of various 
forms, with a pseudoparenchymatous wall of chambered struc- 
ture, bursting through the apex of the volva at maturity and 
carrying aloft the spores; gleba deliquescing into a syrupy mass 
containing the very minute (3-8 a X 1-2.5 p) ellipsoidal spores. 
KEY TO THE GENERA. 
I. Gleba borne on the outer surface of the receptaculum PHALLE# 
rtion of 
Mutin 
1. Receptaculum consisting of a stipe along the upper Po 
which the gleba is borne - . : 
2. Receptaculum consisting of a stipe and pileus joined together 
at their apices; gleba on the upper guitace ty 
4 e : : : i i Ithyphallus 
3. Receptaculum consisting of a stipe, pileus, and veil; gleba on 
the upper surface of the pileus 2 : 
II. Gleba borne on the inner surface of the receptaculum - CLATHRE# 
4. Receptaculum lacking a stipe, consisting of obliquely anasto- 
mosing bars or of vertical columns joined together 
bove : : fs 3 : Clathrus 
5. Receptaculum clathrate above, stipitate - Sinbien 
6. Receptaculum consisting of a stipe divided at its upper end ~~ 
free arms whose inner surfaces and flanks between neighboring 
* arms are covered by the gleba “ Aa 
“Contribution No. XXXVII from the Cryptogamic Laboratory of Harvard Uni- 
‘tosy prepared under the direction of Dr. W. G. Farlow. 
379 
