THE GASTEROMYCETES OF AUSTRALASIA. XI. THE PHALLALES, PART II. By G. H. Cunningham, Mycologist, Plant Research Station, Palmerston North, N.Z. (Plates viii-x.) [Read 27th May, 1931.] This paper is a continuation of Part I of the Phallales (in which the family Phallaceae was discussed) and covers the Australian and New Zealand species included in the families Clathraceae and Claustulaceae. Family II. Clathraceae. Peridium obovate or subglobose, at first submerged, becoming superficial or almost so; rupturing from the apex downwards to form several lobes, exposing the receptacle and persisting as a volva supporting this structure; gelatinous layer broken into plates by bands of intermediate tissue corresponding with the arms of the receptacle. Receptacle completely free within the volva, of various types, stipitate or sessile, clathrate, columnar, or of apically united, connivent or free arms arising from the apex of the stipitate base, chambered, pseudoparen-chymatous. Gleba borne on the arms of the receptacle or upon some modified portion of these. Basidia bearing 4-S sessile, elliptical, smooth, continuous spores. The family may be separated into 3 distinct tribes, and contains the following 11 genera: Key to the Tribes and Genera. Tribe I. Stellateae : Receptacle stipitate, of simple arms borne on the apex of a simple hollow stem ; arms either apically organically united, connected by a membrane, free and connivent, or laterally expanded from the discoid apex of the stem. Arms apically organically united or united by a membrane. Glebiferous layer composed of irregular pseudoparenchymatous processes 1. ( *Mycopharusii ) Glebiferous layer consisting of walls of the chambers of the arms 2. An-thurus-Arms apically free, connivent or expanded. Arms connivent (usually), attached to the apex of a simple cylindrical stem 3. Lysurus. Arms attached laterally to a horizontal discoid expansion of the apex of the cylindrical stem 4. Aseroe. Tribe II. Columnateae : Receptacle without a stipitate base, of simple columnar arms organically united apically, but free basally. * Genera not occurring in Australia or New Zealand are placed in brackets. t Mycopharus Fetch (1926, p. 281) was proposed by Petch to replace Pharus (Petch, 1919, p. 59) which was erected to contain "Lysurus Gardneri" ; Pharus being pre-occupied by a genus of the Gramineae.
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