Part 1, 1906] TILLETIACEAB 67 



6. BURRILLIA Setch. Proc. Am. Acad. 26: 18. 1891. 



Sori in various parts of the host, generally in the leaves', rather permanently imbedded 

 in the tissues ; spore-balls without a distinct cortex of sterile cells, conspicuous, composed 

 entirely of fertile cells or with some sterile parenchymatous cells ; spores hyaline or 

 yellowish, rather firmly united, of medium size, similar to those of Entyloma ; germina- 

 tion similar to that of Entyloma, 



Type, Burrillia pustulata Setch. 



Sori forming scarcely thickened spots in leaves. 

 Spore-balls small, 75-140 n^. 

 Spore-balls large, 160-250 /^. 



\. B. decipiens. 

 2. B. Echinodo7'i. 



Sori forming small hypophyllous blisters. 3. B. pustulata. 



1. Burrillia decipiens (Wint.) Clinton, Jour. Myc. 8: 154. 1902. 



Doassansia decipiens Wint. Jour. Myc. 1 : 102. 1885. 



Sori in leaves, forming yellowish circular areas, thin, with spore-balls showing as 

 minute elevations ; spore-balls situated chiefly in the palisade-layer, densely clustered, con- 

 sisting of a firmly adhering mass of spores without a definite cortex though partially 

 covered with remains of dark-brown thick-walled sterile threads, chiefly subspherical , 75- 

 140 /i in diameter; spores pale, polyhedral or often more irregular, with moderately thick 

 smooth walls, 8-12// in diameter. 



On Meistvanthaceae : 



LiTtinanthemitm lacunosum^ New Jersey. 

 Type locality : Green Pond, Morris County, New Jersey, on Ltmnanthemum lacunosum. 



Distribution : Known only from the type locality. 



2. Burrillia Echinodori Clinton, Jour. Myc. 8 : 154. 1902. 



Sori in leaves, forming irregular to subcircular areas, showing spore-balls as closely 

 clustered very minute elevations on both surfaces ; usuaHy a single spore-ball occupying 

 entire section of leaf between layers of the epidermis, more or less merged sidewise, often 

 irregular but chiefly oblong to subspherical, without distinct cortex but composed of sterile 

 ceUs and spores intermixed, chiefly 160-250 ^i in length; sterile cells light reddish-brown 

 with thinner waUs than the spores and more irregular in shape and size ; spores light-col- 

 ored, chiefly ovoid to spherical, occasionally somewhat flattened, apparently thick-waUed, 



12-18/^ in length. 



On Alismaceae : , . ^ ,.r • ^a -a^ 



Echinodorus cordifolius {E. rosiratus), California Florida. ^y />,/,■,, ,^ 



Type LOCALITY : Lower Matecumbe, Florida, on Echtnodorus rosiratus {E. cordtfohus). 



Distribution : Florida and California. 



3. Burrillia pustulata Setch. Proc. Am. Acad. 26 : 18. 1891. 



Doassansiopsis pustulata Dietel, in B. & P- Nat. Pfl. 1^** : 22. 1897. 



Sori in leaves, forming small hypophyllons blisters irregnlarly clnstered or scattered 

 over the surface and eventually rupturing, showing above as small more or less distmct 

 Yellowish or reddish-brown areas ; spore-balls situated in the spongy parenchyma, consist- 

 ing of several irregular layers of fertile cells within which is a central mass of parenchym- 

 atous cells with oily contents, ellipsoidal, large, 200-350^ in length ; spores rather firmly 

 adhering, subspherical or polyhedral, rarely more irregular, chiefly 8-12// m diameter. 



^"^ S^^"''/^^^^^^^ (^- ^o.riahilis^, Illinois, Nebraska, Wisconsin 

 Type focALiTY : Dixon, Illinois, on Sagittarta vart-ahths iS. latt/oha). 

 Distribution : Illinois, Wisconsin, and Nebraska. 

 Illustration : Ann. Bot. 6 : pi. 2,f. ^^._ 

 ExSiCCATi: Seym. & E)arle, Econ. Fungi, C I. 



KXCLUDED SPECIES 



Burrillia globulifera Davis, Bot. Gaz. 22: 414. XZ')^^ {Doassansiopsis globulifera 

 Dietel! in E. sfp. Nat. Pfl. 1>**: 22. 1897.) On Glyceria flmtans. Sclerotmm of some 

 fungus . 



