PeyicJiaena. 117 



and spores clear mrtnrjc-yclloio ; capillitiuin rather scanty, form- 

 ing a loose net, threads 3 — 5 yi diameter, sometimes notched or 

 with scattered rudimentary spinules; spores globose, minutely 

 ivarted, 11 — 12 // diameter. 



Hcmiarcyria cvpjilanata, Cke. and Mass., Grev., vol. xvi., p, 20. 

 (Type in Herb., Kew.) 



On wood. Brisbane. 



From 1 — 2 mm. diameter. Readily known by the bright 

 grey sporangium and the clear orange spore-mass. The present 

 species, owing to superficial examination, was originally described 

 as a Hemiaoxyria. 



Perichaena microcarpa, Schroet. 



Sporangia distinct or confluent in minute clusters, generally 

 globose, 0'5 mm.. diameter, rarely unequal, depressed, yellow- 

 brown, smooth, dehiscing irregularly ; capillitium well-developed, 

 threads golden-yellow, 1*5 — 2 /x thick, combined to form a loose, 

 regular net, thickened at the angles, smooth ; spores golden-yellow, 

 globose, 15 — 17 /x diameter, epispore strongly aculeolate. 



Perichaena microcarpa, Schroeter, Krypt. Fl. Schles. Pilze, 

 p. 108; Sacc, Syll, vii., pt. I., n. 1445. 



On rotten leaves. Silesia. 



Perichaena Rostafinskii, Karst. 



Sporangia scattered or sub-gregarious, sessile, spherical, yellow- 

 ish then bay, shining; capillitium ohsolete ; spores globose, 

 smooth, or nearly so, in the mass llachish-hroum, brownish under 

 the microscope, variable in size, 10 — 27 /x diameter. 



Perichaena Rostafinskii, Karst., Myc. Fenn. IV., p. 130 ; Sacc, 

 Syll., n. 1444. 



On dead moss, rotten leaves, &c. Finland. 



The variability in the markings and size of the spores suggests 

 that Karsten has had an immature species under consideration. 



Perichaena confusa, Mass. (n. sp.). 



Sporangia hemispherical ami scattered or aefhalioul, and. often 

 forming an irregular nctiuorlc, pale umber or dingy ochraceous, 



