Ascospores 4-celled, penultimate cell largest, 12-18 X 5- 

 S u, yellow-brown, straight or curved, fusiform or cylin- 

 drical, constricted at septa, enclosed in a hyaline, 

 gelatinous sheath 11-17 /j thick. 



Ascocarp a pseudothecium; asci bitunicate. 



Fn Spartina, reeds, driftwood, and other cellulosic mater- 

 ial. 



Leptnsphaeria marina Ellis & Ever. 



J. Mycol. 1:4.3. 188.5. 



.Ascospores 2- to 4-celled, 48-72 X 10-14 tj, yellow to yel- 

 low-brown, fusiform or elongate-ellipsoidal, ends 

 rounded, straight or curved, constricted at septa. 



Ascocarp a pseudothecium; asci bitunicate. 



In Juncus, Spartina, reeds, driftwood, and other cellu- 

 losic material. 



Lulworthia medusa (FA\. & Ever.) Cribb & Cribb emend. 

 Cavaliere & Johnson 



.\ova Hedwigia 10:4.34-4.3,5. 1966. 



Ascospores single-celled, 60-760 /j, hyaline, filiform, ta- 

 pering, curved, s-shaped, u-shaped or cy -shaped; 

 provided at each end with a hyaline, tapering, conoid 

 end chamber or appendage of variable length. 



Lulworthia medusa — small spore variety "fucicola-type" 

 60-150 M- 



Lulworthia medusa—medium spore variety "medusa- 

 type" 2.30-.5OO fj- 



Lulworthia medusa — large spore variety "grandispora- 

 type" ,500-760 fx. 



Fn Spartina, Typha, Zostera, Fucus, stems of various 

 phanerogams, driftwood, reeds, and other cellulosic 

 material. 



Leptosphaeria maritima (Cooke & Plow.) Sacc. 



Sylloge Fungorum 2:73. 1883. 



Ascospores 4- to 6-celled, .30-45 X 6-14 /j, yellow to yel- 

 low-brown, fusiform or ellipsoidal, straight or slightly 

 curved, constricted at septa, conspicuously at mid- 

 septum; midcells of unequal size; covered by a thin 

 gelatinous sheath. 



Ascocarp a pseudothecium; asci bitunicate. 



In Juncus, Spartina. reeds, driftwood, and other cellu- 

 losic material. 



Leptosphaeria oraemaris Linder 



Farlowia 1:413. 1944. 



Ascospores 2- to 4-celled, 17-32 X 4-8 p, brown or dark 

 brown, fusoid or ellipsoidal, straight or curved, con- 

 stricted at septa. 



Ascocarp a pseudothecium; asci bitunicate. 



Fn Spartina, reeds, floating culms, driftwood, and other 

 cellulosic material. 



Lignincola laevis Hohnk 



Veroff. Inst. Meeresforsch. Bremerhaven 3:216. 1955. 



Ascospores 2-celled, 14-24 X 5.5-9 p, hyaline, fusiform or 



ellipsoidal-oblong, straight or slightly curved, 1 large 



guttule per cell, constricted at septum. 

 In driftwood and other cellulosic material. 



Lindra inflata Wilson 



Trans. Br. Mycol. Soc. .39:411. 19.56. 



Ascospores multiseptate, 28- to 52-celled, septa nar- 

 rowly spaced, 210-415 X 4-6 ijl, filiform, hyaline, 

 diameter uniform throughout, multiguttulate; provid- 

 ed at each end with a short, clavate or subglobose, 

 hyaline, gelatinous appendage. 



In reeds, driftwood, and other cellulosic material. 



Lindra thalassiae Orpurt, Meyers, Boral, & Sims 

 Bull. Mar. Sci. Gulf Caribb. 14:406. 1964. 

 Ascospores multiseptate, 15- to 19-celled, 230-390 X 3- 



6 n, filiform, curved, s-shaped or u-shaped, hyaline, 



attenuate, tips slightly inflated. 

 Fn Thalassia and Sargassum. 



Marinospora calyptrata (Kohlm.) Cavaliere 



Nova Hedwigia 11:548. 1966. 



Ascospores 2-celled, 22-35 X 9-11 /j, hyaline, ellipsoidal, 

 ends rounded, 1 large guttule per cell, constricted at 

 septum; provided with an appendage at each end, and 

 3 or 4 of them around the septum, each up to 30 n in 

 length, hyaline, gelatinous, straight or curved, and ter- 

 minated with a small involuted cap or tip. 



Ascocarp a stromatic structure with unitunicate asci. 



In driftwood, reeds, and other cellulosic material. 



Massariella maritima Johnson 



Mycologia 48:846. 1956. 



Ascospores 2-celFed, 10-15 X 5-10 m, yellow-brown, ellip- 

 soidal or oblong-ellipsoidal, 1 large guttule per cell, 

 constricted at septum, surrounded by a relatively thin 

 gelatinous sheath. 



In driftwood. Rare. 



Microthelia linden Kohlm. 



Trans. Br. Mycol. Soc. 57:483-484. 1971. 



Syn. Microthelia maritima (Linder) Kohlm. 

 Nova Hedwigia 2:.322. 1960. 



Ascospores 2-celled, 13.5-21 X 5-7.5 m. brown or light 

 brown, ellipsoidal, clavate or fusiform-ellipsoidal, oc- 

 casionally curved, one cell usually larger than the 

 other, cells may be minutely guttulate, constricted at 

 septum. 



Ascocarp a pseudothecium with bitunicate asci. 



In driftwood, culms, and other cellulosic material. 



Mycosphaerella ascophylli Cotton 



Trans. Br. Mycol. Soc. 3:96. 1908. 



Ascospores 2-celled. 15-25 X 4-6.5 fi, hyaline, fusiform to 

 oblong, ends tapering, guttulate, may be slightly con- 

 stricted at septum. 



Ascocarp a pseudothecium with bitunicate asci. 



In Ascophyllum. 



Sais inornata Kohlm. 

 Nova Hedwigia 4:409. 1962. 



Ascospores 2-celled, 22-.30 X 11.5-15.5 /i, hyaline, broadly 

 ellipsoidal or broadly oval, ends rounded, one large 



43 



