452 Bulletin 315 



brick-red contents; spores regnlariy ellipsoidal, hyaline, smooth, 2-3 m long, 

 1 . 5)U broad (maximum 4/x long), in mass when young ashen-gray, with age 

 bluish. 



Hab. Isolated from meadow soil, Czamohora, altitude 1,430 m., 

 Galicia, Austria, Namyslowski. 



Mucor adventitius Oudemans, Overdr. Nederl. Kruidk. Arch. ser. 3, 2: 

 3. 1903. Lendner, Les Mucorinees de la Suisse, 64. 1908. 



Sporangiophores simple, continuous, hyaline, forming a sward 2 cm. 

 high; sporangia globose, 80-9 5^ in diameter, at first hyaline then much 

 later becoming clear gray, finely echinulate, provided with a diffluent 

 membrane ; columella at first globose, much later becoming ellipsoidal or 

 campanulate, hyaline, measuring 40-48 by 48-64^1 and provided with a 

 basal collar; spores ellipsoidal or merely oblong, 8-8.5 by 4-5~5M, smooth, 

 hyaline, grayish black when in mass. Zygospores and chlamydospores 

 not observed. 



This species resembles M. mucilagineus Bref., from which it differs by 

 its much smaller spores (8-8.5 by 4.5-5M as against 30-33 by i5;u) and 

 by the absence of intersticial mucilaginous protoplasm. 



Hab. Isolated on exposed gelatin in the woods called Spanderswoud 

 near Bussum, Holland, Koning. 



var. aurantiaca Lendner, 1. c. 



Differs from species in containing guttulse of a yellow-orange color. 



Hab. Isolated from forest. Canton of Vaud, Switzerland, Lendner. 



Mucor strictus Hagem, Untersuch. ii. Norw. Mucorineen i : 18-19. fiS- 1' 

 1908; reprint from Vid.-Selsk. Skr. I, Math.-Naturv. Klasse No. 7, 1907. 

 Lendner, Les Mucorinees de la Suisse, 97-98. 1908. 



Sporangiophores erect, 1-4 cm. high, 25-40/x thick, forming dense silver- 

 white colonies, unbranched or also frequently with a single branch, mostly 

 nonseptate; sporangia at first wax-like white, at maturity black, 200-300/i 

 in diameter, fine-spiny; membrane dissolving, leaving at base of colimiella 

 a collar; coltimella seldom globose, mostly oval or ovate with somewhat 

 smaller base, in young sporangia with fine granular contents, in 

 mature sporangia mostly without contents and with smooth membrane, 

 100-160JU high and 80-140^1 broad, spores variable, seldom globose 

 or oval, of 3. 5-7. 5m diameter, mostly, however, regularly cylindrical, 

 almost twice as long as broad, 5-7/i long by 2.5-3.5/1 broad; zygospores 

 unknown. 



Hab. Acid soil of spruce woods, Norway, Hagem. 



Mucor mucedo (Linne p. p.) Brefeld. For synonymy and literature 

 see Fischer in Rab. Krypt. Flora Abt. 4, i : 186-190. 1892. Hagem, Unter- 

 such. ii. Norw. Mucorineen i: 18. 1908; reprint from Vid.-Selsk. Skr. I, 

 Math.-Naturv. Klasse No. 7, 1907. 



