APPENDIX. 361 



fours upon sporophores, in groups of globose nuclei open- 

 ing by a common pore. 



15. Ckeirospora. Sporidia simple, crowded in tufts at 

 apex of a filiform sporophore, in moniliform rows. 



Family III. PHRAGMOTRICHACE^;. Conceptacles horny, 

 breaking through epidermis of leaves, etc., at first closed, 

 then bursting longitudinally ; spores septate, and in chain- 

 like series, with paraphyses on internal walls of concep- 

 tacles. 



Gen. 1. Endotrichinn. Conceptacle innate or immersed, 

 bursting by a longitudinal slit ; spores globular, simple. 



2. Schizothccium. Conceptacle superficial, bursting 

 laterally ; spores globular, simple. 



3. Pilidium. Conceptacles simple, sessile, rounded, 

 bursting by stellate fission ; spores spindle-shaped, simple. 



4. Exdpula. Conceptacle cup-shaped, membranous, 

 sessile, naked ; spores spindle-shaped. 



5. Dinemasporium, Conceptacle cup-shaped, membra- 

 nous, sessile, closed by villi, and at length open ; sporige- 

 nous layer discoid, dissolving, with cylindric, elongate, 

 filiform spores. 



6. Myxormia. Conceptacle thin, cup-shaped, open, 

 formed of elongated cells. Pedicels of spores delicate. 

 Spores oblong, chained together, at length free, involved 

 in mucus. 



7. Cystatricha. Conceptacle bursting by a longitudinal 

 slit ; pedicels of spores branched, articulate, somewhat 

 beaded. 



8. Bloxamia. Conceptacle delicate, hyaline, upper part 

 evanescent and forming a rim. Spores quadrate in crowded 

 tubules. 



9. Phragmotrichum. Conceptacle horny, carbonaceous, 

 at first closed, then splitting by longitudinal fissure ; 

 fertile filaments mixed with inarticulate paraphyses; 

 spores compound and chained in series. 



