Part 1, 1906] TILLBTIACBAE 



53 



line membrane more or less evident and often ending at one side in a short thread-like 

 projection, 22-33// in length. 



On Poaceae : 



Oryza saliva, South Carolina. 

 Type locality : Tokyo, Japan, on Oryza saliva. 

 Distribution : South Carolina ; also in Asia where rice is cultivated 

 27 • ■^8^/!^7-^'^^°^® ■ ■^*^*' ^^^' '^''^^° 10 : 20 ; Bull. S. Car. Agr. Bxp. Sta. 41 : /. 1-4 ; Bot. Gaz. 



22. TiUetia Eragrostidis Clinton & Ricker ; Ricker, Jour. Myc. 



11: 111. 1905. 



Sori in ovaries infecting one here and there in the inflorescence, ovoid, about 1 mm. or 

 less in length ; sterile cells hyaline, ovoid to spherical, with thick lamellate walls, chiefly 

 smaller than the spores; spores light to dark reddish-brown, often opaque, subspherical or 

 spherical, rarely more elongate, with coarse tinted truncate scales extending out at circum- 

 ference 2.5-4 /i. and showing on top in cross-section as polygonal areas, 28-37 // in length. 



On Poaceae : 



Eragrostis glomerata, Mississippi. 

 Type locality : Yazoo City, Mississippi, on Eragrostis glomerala. 

 Distribution : Known only from the type locality. 



Doubtful and excluded specie^ 



Tilletia Oryzae Pat. Bull. Soc. Myc. Fr. 3 : 124. 1887. = Ustilaginoidea Oryzae 

 (Pat.) Bref., an ascomycete. 



? Tilletia sp., resembling Tilletia Sphagni, On Ricciocarpus nutans. Nature unde- 

 termined. 



2. NEOVOSSIA Korn. Oesterr. Bot. Zeits. 29 : 217. 1879. 



Vossia Thiam. Oesterr. Bot. Zeits. 29 : 18. 1879. Not Vossia Wallich & Griffith. 1836. 



Sori usually in ovaries, forming a somewhat dusty spore-mass ; spores simple, pro- 

 duced singly in the swollen ends of special fertile threads (sterigmata of Magnus) which 

 permanently invest the spores and taper into elongate hyaline appendages, of large size ; 

 germination by a short promyceliura producing numerous terminally clustered linear 

 sporidia which germinate without conjugation and, in nutrient solutions, give rise to a 

 mycelium producing secondary sporidia of two kinds. 



Type, Vossia Moliniae Thiim. 



1. Neovossia iowensis Hume & Hodson, Bot. Gaz. 30 : 274. 1900. 



Sori in ovaries, ovoid, about 2-3 mm. in length, showing between the spreading glumes, 

 upon ruptiire of covering membrane disclosing a dusty black spore-mass ; sterile cells or 

 immature spores hyaline, thick-walled, chiefly smaller than the spores ; spores reddish- 

 brown, subopaque, ovoid or ellipsoidal to rarely subspherical, with prominent hyaline 

 envelope that terminates at one end in a tapering irregular tail about twice the length of 

 the spore, the cell-wall minutely reticulate-pitted, 19-28 n X 13-19/^. 



On Poaceae : 



Phragmiies Phragmites {P. communis) ^ Connecticut^ Iowa. 

 Type locality: Colo, Iowa, on Phragmites communis (P. Phragmites). 

 PiSTRiBUTiON : Connecticut and Iowa. 

 Illustrations : Bull. Conn. Geol. Nat. Hist. Surv. 5 :/. V ; Bull. Iowa Agr. Exp. Sta. 54 : /. 



122; Bot. Gaz. 30 : 274,/. 1. 



BxsiCCATi: Seym. & Barle, Econ. Fungi CllJ. 



TUBURCINIA 



1882. 



Sori usually in the leaves or stem, forming dark-colored often papillate areas, rather 

 permanently embedded in the tissues; spore-balls composed entirely of firmly united 

 fertile cells, of medium size ; spores usually dark-colored, variable, of medium size ; some- 

 times preceded by conidia, forming a conspicuous white growth on the surface of leaves, 



hyaline, oblong to ovate. 



Type, Tuburcinia Trientalis B. & Br. 



Spore-balls of 6 to many spores ; 27-75 m in length. 1- T Clintoniae. 



Spore-balls of 10 to many spores ; 45-100 ^ m length. i. i . i rtentaits. 



