19 



lIyi)0)»liylloiip!. Myc'oliinii usually douse, fbriuiiig invirular. 

 whitish si)ots or patches. Peritlioeia scattei'od, flattouod or dej)i'essed 

 aliove, larjro. 225-280//: ajipoudairos very nuuierous. 250-300 or 

 uioro, aliout hall" as louir as the diauiotoi- of the jiorithcciinu, at iirst 

 clavate, thou attouuate aud oneo coiled at the ajiox, hyaline. Asci 

 uuuierous, 50 or luoi-e, about 27 x 80 //. Sporidia 2, or rarely more, 

 larffc, about 17 x 27 //, nearly filliuj;' the aseus. 



On Ccltis occidental is, Carolina (Ravonel), Minsissip))i (Tracy). 

 South Aiiioiica (Sjiogazziui). Apparently not abundant. 



r. cuiifiis<i, Massee, Gr<'v. XVII, p. 78. 



riiciiiiila fiolycliata, B. & C. Orev. IV, p. 159 (No. 9^3). 

 Plcoclurta Ciirthii, Sacc. and Speg. I. e. 



nyi)0]ihyllous. Mycelium very .scanty, not forming spots. Peri- 

 tlieciu scattered, usually not more than 2-3 on a leal", 150-200 //: 

 appendages 25-28, sinijile, colorless, very slender, about 300 x 2-3 //: 

 apices stronjilv involute, not at all thickened. Asci about 25, cvlin- 

 dric-clavate, 4-spored. Sporidia colorless, simjile, elliptical, oblong, 

 20x10//. 



On loaves of Ccltis occidentalis, Carolina. 



r. f;eniculata, (ieiard, Bull. Torr. iiot. Club, IV, p. 48. 



Ej)il)hyllous. Mycelium thin, in definite s|)ots or overspreading 

 the leaf. Perithecia scattered, usually K'\\\ 90-120 //; a])pondages 

 15-30, hyaline somewhat roughened, often geniculate, about once 

 to twice the di.imeter of the perithecium in length, al)out 1^ times 

 spirally coiled at the a])ex. Asci 0-8. Sporiilia 4-6, about 14-20 // 

 long. 



On MoruK rubra, rare oi- missed by collectors. New York, 

 Illinois (Pammel). 



U. Salicis, (DC.) (Plate 2) 



liiysiplif Saliiis, DC. Flore I'ranc. 11, p. 273. 



Etysiplic Jhpuli, DC. Flore Franc. VI, p. 104. 



Alpliilomotpha aduiica, Rultala, WaUr. Verli. Naturf. Freunde. 1, pp. 37. 43. 



Eiysihi' adiiiica, uhtusatu, I,k. Spec. Plant. VI, I, p. 117. 



Eiysiphe atliinai, Grev. Scott. Crypt. Flora, V, tab. 296. 



I'litiiiiihi ai/iiiua. I<ev. Ann. Sci. Nat. Ser. Ill, Tome XV. 



Vnn'iiiiUi 1,'iiciileiita. Howe, Trans. Albany Inst. VII, quoted in Amer. Nat. VII, 



p. 5S. 

 I'liciniihi /irlici/oiHiis, Howe, Torr. Hull. V, p. 4. 

 ('iin'iiii/ii .S(i/ir/s. DC. Winter, Die I'ilze, II, p. 40. 



Ampliigenous. Alycelium abundant, pL'rsistent. Perithecia usually 

 largo, 100-1(50 //, wall tissue soft, elastic, reticulations rather small 

 and indistinct; api)endagos variable in numbor, usually very numerous, 

 hyaline, not much .«wollen at the tip, once to twice as long as the 



