610 FUNGI IMPEKFECTi: THE IMPERFECT FUNGI 



Conidia five to eleven septate, straight or only slightly curved, all the cells 

 colored except the basal cell and the one- to three-celled beak. 



Scolecosporium 

 Conidia with filiform appendages. 

 Appendages only from the apical cell. 



Appendage single. Monochaetia 



Appendages several. Pestalotia^^ 



Appendages from both apical and basal cells. 



Appendages single. ' Hxjaloceras 



Appendages two. Diploceras 



Conidia colored, with transverse and some longitudinal septa. 



Steganosporium 

 Conidia colorless, filiform or rod-shaped, many times as long as thick. 

 Parasitic in leaves or fruits. Cylindrosporium 



Saprophytic (or sometimes parasitic?) on twigs. 



Conidia filiform, narrow, more or less curved; spore mass yellow or reddish. 



Libertella 

 Conidia cylindric or fusoid, broader; spore mass whitish. 



Cryptosporium. 



Keys to Special Groups of Order Moniliales; Endosporeae^^ 



Endoconidiophores forming a layer on the surface of a sporodochium ; endo- 

 conidia globose, colored, embedded in a slimy layer (Tuberculariaceae). 



Hymenella 

 Endoconidiophores not borne on a sporodochium, endoconidia one-celled. 



Endoconidia one-celled, hyaline, pushed out in a chain from the spreading 

 opened apex of the conidiophore; "macroconidia" in chains, colored. Para- 

 sites in roots. Thielaviopsis 



Endoconidia as in the foregoing, but the apex of the conidiophore not flaring: 

 "macroconidia" single, sessile or short-stalked. Parasites in roots and upper 

 portions of plants. Chalaropsis 



Endoconidia hyaline, produced in chains in the more or less flask-shaped dark- 

 walled conidiophores which do not flare at the top. Parasites and saprophytes. 



Chalara 



Endoconidia mostly becoming brown-walled with age; pushed out successively 

 into the flaring mouth of the conidiophore and gathering there into a slimy 

 ball. Saprophytic in woody material, or parasitic on leaves, one species 

 pathogenic to Man, causing chromoblastomycosis. The saprophytic species 

 are mostly called Cadophora. Phialophora 



Endoconidiophores with flaring collars, producing a short chain of colored dry 

 conidia, and then proliferating so that a chain of conidiophores is formed, 

 each with its flaring collar. Catenularia 



" More often written by the later name Peslalozzia. 



1" In this group of probably not all closely related fungi some of the conidia are 

 produced in tubular conidiophores from whose apical end the spores are pushed out 

 successively. These special conidiophores are perliaps to be considered as especially 

 modified phialides. In addition to the endoconidia other usually larger conidia of the 

 more usual types ("macroconidia") may occur. By the system of classification ordi- 

 narily used for Order Moniliales these genera would be distributed among three 

 different families: Moniliaceae, Dematiacoae, Tuberculariaceae, and perhaps, under 

 certain conditions of growth, Stilbellaceae. 



