THAXTER. — LABOULBENIACE^E. 105 



I. ANTHEROZOIDS ENDOGENOUS. 



A. Antheridia composed of several Cells. 



§ Dioecious Dimorphomyces 



1. On Falagria dissecta Er denticulatus. 



2. On Falagria dissecta Er muticus, 



§§ Monoecious. 



* Antheridium borne on an appendage free from the receptacle. 



a. Antheridium lateral below a terminal branch of the 



appendage Cantharomyces 



1. On Bledius assimilis Bledii. 



2. On Bledius armatus Er occidentalis. 



3. On Trogophlceus sp pusillus. 



b. Antheridium terminal tipped by a spine-like process. 



Haplomyces 



1. On Bledius ornatus Lee calif ornicus. 



2. On Bledius rubiginosus Er texanus. 



3. On Bledius emarginatus Say virginianus. 



c. Antheridium terminal with a prominent apical pore. 



Camptomyces 

 1. On Sum us prolixus Er melanopas. 



** Antheridium united to the body of the receptacle from which its pointed 



apex projects. 



a. Peritheoia terminal, free from the asymmetrical recep- 



tacle. Terrestrial Peyritschiella 



1. On Platynus cincticollis (Say) curvata. 



2. On Platynus cincticollis (Say) minima. 



3. On Plerostichus luctuosus Dej. and P. patruelis 



Dej geminata. 



4. On Philonthus debilis Grav nigrescens. 



b. Perithecia terminal, free from the symmetrical recep- 



tacle. Terrestrial Dichomyces 



1. On Philonthus debilis Grav furciferus. 



2. On Philonthus debilis Grav incequalis. 



3. On Xantholinus obsidarius Melsh infectus. 



c. Perithecium wholly or partly united to the asymmet- 



rical receptacle on one side. Aquatic Heimatomyces 

 1. On HaMplus riificollis DeG. and Cnemidotus 



muticus Lee Halipli. 



