cent appendage to 45 /j in length; wholly or partially 

 surrounded by a gelatinous sheath. 

 In driftwood, reeds, and other cellulosic material. 



Ceriosporopsis halima Linder 



Farlowia 1:409. 1944. 



Ascospores hyaline, ellipsoidal, oblong-ellipsoidal or fusi- 

 form, 2-celled, 1-2 guttules per cell, may be con- 

 structed at septum, 17-40 X 6-14 p; provided at each 

 end with a single, broadly filiform, tapering appendage 

 5-8 /[i; in diameter, wholly or partially surrounded by a 

 gelatinous sheath. 



In driftwood, reeds, and other cellulosic material. 



Ceriosporopsis tubulifera (Kohlm.) Kirk in Kohlm. 



Can. J. Bot. ,50:195.3. 1972. 



Syn. Halosphaeria tubulifera Kohlm. 

 Nova Hedwigia 2:312. 1960. 



Ascospores hyaline, ellipsoidal, 2-celled, slightly con- 

 stricted at septum, 1 or 2 guttules per cell, 14.5- 

 23 X 8.5-11 Ai; provided at each end with a broad, 

 flared, tapering, tubular appendage, 9-15 X 5-8.5 n 

 long, in addition, with a 4.5-8.5 n thick equatorial 

 collar which eventually splits into several wedge- 

 shaped fragments. 



In driftwood, reeds, and other cellulosic material. 



Chaetosphaeria chaetosa Kohlm. 



Nova Hedwigia 6:307-308. 1963. 



Ascospores hyaline, fusiform, or elongate to ellipsoidal, 

 4-celled, each cell guttulate, constricted at septa, 25.5- 

 36.5 X 7.5-11.5 /j; provided around the midseptum 

 with numerous, stiff setae, 6-7.5 n long. 



Ascus provided with a disc-shaped, perforated apparatus. 



In driftwood and other cellulosic material. 



Corollospora comata (Kohlm.) Kohlm. 



Ber, Dtsch. Bot. Ges. 75:126. 1962. 



Ascospores predominately 6-celled, fuscous to gray around 

 midseptum, end cells hyaline, fusoid, multiguttulate, 

 constricted at septa, 31-54 X 12-17 p; provided with a 

 tuft of up to 15 hairs at each end and additionally with 

 hairlike tufts at the midseptum; apical hairs to 15 /j 

 long, equatorial ones to 20 n long. 



In driftwood and other cellulosic material. 



Corollospora cristata (Kohlm.) Kohlm. 



Ber. Dtsch. Bot. Ges. 75:126. 1962. 



Ascospores predominately 4-celled, ellipsoidal, fuscous 

 to gray around midseptum, end cells hyaline, mul- 

 tiguttulate, constricted at septa, 24-41 X 8.5-16.5 p; 

 provided with a tuft of hairs at each end and ad- 

 ditionally with hairlike tufts at the midseptum; apical 

 hairs to 8 jj long, equatorial ones to 9 ;u long. 



In driftwood and other cellulosic material. 



Corollospora lacera (Linder) Kohlm. 

 Ber. Dtsch. Bot. Ges. 75:126. 1962. 

 Ascospores 4- to 6-celled (predominately 5-celled) fusoid 



or oblong-ellipsoidal, fuscous to brownish around mid- 

 septum, end cells hyaline, constricted at septa, 1 large 

 guttule per cell, 39-63 X 10-15 jj; provided at each end 

 with a slender, subcylindrical, slightly curved append- 

 age, approximately hornlike in general shape, to 20 u 

 long; in addition, the midseptum is provided with 

 several flexible setae arising peritrichously. 

 In driftwood, reeds, calcareous substrates associated 

 with sandy beaches. Rare. 



Corollospora maritima Werdermann 



Notizbl. Bot. Gart. Mus. Berlin-Dahlem 8:248. 1922. 



Ascospores 2-celled, hyaline to pale yellow around sep- 

 tum, fusoid to ellipsoidal, 1 or 2 guttules per cell, con- 

 spicously constricted at septum, 20-53 X 6.5-14/j; each 

 end provided with a slender, tapering, rigid or 

 semirigid appendage to 20 /j long; in addition, the sep- 

 tum is provided with several flexible setae arising 

 peritrichously. 



In driftwood, cellulosic materials, and calcareous frag- 

 ments. 



Corollospora trufurcata (Hohnk) Kohlm. 



Ber. Dtsch. Bot. Ges. 75:126. 1962. 



Ascospores 2-celled, 26-38.5 X 9-16.5 jj, hyaline, fusoid 

 to ellipsoidal, constricted at septum, 1-4 guttules in 

 each cell; provided at each end with 3 (sometimes 4-7) 

 terminal or subterminal, tapering, curved, deciduous 

 appendages to 39 p long. 



In driftwood, cellulosic materials, and calcareous frag- 

 ments. 



Didymella fucicola (Suth.) Kohlm. 



Phytopathol. Z. 63:342. 1968. 



Ascospores 2-celled, 16-23 X 6-8 p, hyaline, ovoid to el- 

 lipsoidal, constricted at septum, one cell slightly larger 

 than the other. 



Ascocarp a pseudothecium; asci bitunicate, 55-115 X 



10-15 p. 



Reported only in Fucus. 



Didymosamarospora euryhalina Johnson & Gold 



-J. Elisha Mitchell Sci. Soc. 73:104. 1957. 



Ascospores 2-celled, 25-34 X 12-17 p, hyaline, broadly 

 ovoid or broadly fusoid, ends rounded or slightly 

 tapered, 1 guttule per cell, may be slightly constricted 

 at septum, surrounded by a gelatinous, undulant 

 sheath. 



In Juncus and other culms. 



Didymosphaeria danica (Berlese) Wilson & Knoyle 



Trans. Br. Mycol. Soc. 44:57. 1961. 



Ascospores 2-celled, 33-44 X 5-8 ;u, hyaline to slightly 



yellow, broadly ellipsoidal or fusiform-ellipsoidal, 



lower half of spore shorter and cylindrical, the upper 



half slightly larger and pointed. 

 Ascocarp a pseudothecium; asci bitunicate, 83-94 X 12- 



14/i. 

 Reported only in Chondrus. 



40 



