98 DECADES OF BRITISH FUNGI. 
Cat. p. 190 ; DR. and Mont. Fl. Alg. ii. Alphitomorpha clandestina, 
Wallr. Fl. Germ. ii. p. 754. | Erysibe clandestina, Lk. Sp. Pl. p. 105. 
Erysiphe clandestina, Fr. Sys. Myc. p. 238.—On the leaves of Haw- 
thorn. Kentish Town, September, 1864; Shere, near Guildford, 
September, 1865 (Dr. E. Capron). (Fig. 4, tip of appendage, x 
slightly.) 
3. UwcrNvuLA WALLROTHII, Zé. Amphigenous. Mycelium web- 
like, evanescent. Conceptacles minute, scattered. Sporanges 12-16, 
pear-shaped, 6-spored. Appendages numerous, twice the length of the 
diameter of the conceptacles.—Léy. Ann. des Sc. Nat. 1851, xv. 
p.153. Erysiphe Prunastri, De Cand. Fl. Fr. vi. p. 108. Alphito- 
morpha adunca, B. Prunastri, Wall. Verhand. i. p. 37. — Erysibe 
adunca, var. 2. Prunastri, Lk. Sp. Pl. i. p.111. Erysiphe adunca, B. Pru- 
nastri, Duby, Bot. Gall. p. 870; Fr. S. M. iii. p. 245. Alphitomorpha 
adunca, c. Rosacearum, Rabh. D. Krypt. Fl. p. 236 (partly).—On 
the leaves of Prunus spinosa. Shere, October, 1865 (Dr. E. Capron). 
—This species is very closely allied to Uneinula adunca, from which 
the length of the appendages, the number of sporanges and of the 
spores, with its evanescent mycelium, distinguish it. 
4. MICROSPHÆRIA comata, Lév. Hypophyllous. Mycelium web- 
like, fugacious. Conceptacles scattered, minute, globose. Sporanges 8, 
ovate, with a beak-like termination at their base, 4- spored. Appendages 
few, six times the length of the diameter of the conceptacles.— Calocla- 
dia comata, Lév. Ann. des Sc. Nat. 1851, xv. p.157; Cooke, Fung. Brit. 
Exs.n.94. Erysibe Euonymi, De Cand. Fl. Fr. vi. p.105. Alphitomor- 
pha comata, Wallr. Fl. Crypt. ii. p. 757. — Erysibe comata (Euonymi), 
Lk. Sp. Pl. ii. p. 114. Erysiphe Euonymi, Duby, Bot. Gall. p. 870. 
E. penicillata, e. Euonymi, Fr. S. M. iii. p. 244. Erysibe comata 
(Luonymi), Rabh. D. Krypt. Fl. p. 231.—On the leaves of Euonymus 
Europeus. Shere, September, 1865 (Dr. E. Capron). (Fig. 5, tip 
of appendage, x slightly.) 
. 5. ERYSIPHE HORRIDULA, Lóv. Amphigenous. Mycelium web-like, 
sometimes persistent. Conceptacles minute, globose, scattered or 
clustered. Sporanges 20-24, oblong-ovate, attenuated downwards, 
g 3-4 spores. Appendages short, flexuose, and bent upwards. 
—Lér. io des Se. Nat. 1851, xv. p. 170. Alphitomorpha horri- 
dula, var. a. Asperifoliarum, Wallr. Fl. Germ. ii. p.755. Mucor Ery- 
ele, Symphyto, Leyss. Fl. Hol. p. 805. Erysibe Rorridula, e. Aspe- 
