CHAP, II—DIFFERENTIATION OF THE THALLUS,— SCLEROTIOID BODIES. 43 
not sending out sporophores as branches, but in producing sporogenous receptacles 
in their interior. Well-known examples are the Ascomycetes of the genera Rhytisma, 
Polystigma, Phyllachora and many of their allies which live on leaves. They develope 
in the substance of the leaves, which they attack during the summer, a thallus very 
closely resembling in many respects the sclerotia of Sclerotinia Fuckeliana, and 
primordia of sporogenous receptacles are formed at the expense of the reserve-material 
in the interior of the thallus after it has passed the winter on a dead leaf; examples 
of these will be described in greater detail in Division IT. 
Literature of mycelia. 
Filamentous mycelia, haustoria, &c. See the lists of authors under the several 
genera and groups in Division II. ° 
Erisyphe :— 
v. MOHL in Bot. Ztg. 1853, p. 585: 
DE Bary, Beitr. zur Morph. u. Phys. d. Pilze III. 
Mycelial strands. Xylostroma, &c. :— 
ROSSMANN, Beitr. z. Kenntn. d. Phallus impudicus (Bot. Ztg. 1853, Nr. 11). 
TULASNE, Fungi hypogaei, p.'2 (Fungor. Carpol. I, pp. 99, 120, &c.). 
H. HOFFMANN in Bot. Ztg. 1856, p. 155. 
PALISOT DE BEAUVOIS in Ann. du Mus. d’hist. nat. VIII (1806), p. 334. 
DUTROCHET in Nouv. Ann. du Mus. d’hist. nat. III (1834), p. 59. 
TURPIN in Mem. de l’Acad. d. Sc. XIV (1838). 
(Turpin and Dutrochet both describe the development of Cantharellus Crucibulum, 
Fr. from a reticulately branching mycelium.) 
FRIES, Plantae homonemeae, p. 213. 
LEVEILLE in Ann. d. sc. nat. ser. 2, XX, p. 247. 
DE Bary, Ueber Anthina (Hedwigia I, p. 35) ;—Id. Beitr. z. Morph. u. Phys. d. 
Pilze I (1864). 
JUNGHUHN in Linnaea, 1830, p. 388. 
R. HARTIG, Wichtige Krank. d. Waldbäume, Berlin, 1874, p. 46 ;—Id. Die Zerset- 
zungserscheinungen d. Holzes, Berlin, 1878. 
Rhizomorphae. (See also Streinz, Nomenclator. Bail, Tulasne, II, cc., Palisot de 
Beauvois, /. c.) :— 
EHRENBERG, De Mycetogenesi, /. ¢. p. 169. 
ESCHWEILER, Commentatio de generis Rhizomorphae fructificatione, Elberfeld, 
1822. 
NEES v. ESENBECK in Nov. Act. Ac. Nat. Curios. XI, 654; XII, 875. 
J. SCHMITZ, Ueber d. Bau &c. d. Rhizomorpha fragilis, Roth. (Linnaea, 1843, p. 478, 
tt. 16, 17). 
TULASNE, Fungi hypogaei, p. 187 ;—Id. Fungor. Carpol. I. 
BAIL in Hedwigia I, 111, and Ueber Rhizomorpha und Hypoxylon i in Nov. Act. Ac, 
Nat. Cur. Bd. 28 (1861). 
LASCH, Bemerk. über Rhizomorpha (Hedwigia i; 113). 
OTTH, Ueber d. Fructification d. Rhizomorpha (Mittheilungen d. Naturf. Ges. Bern, 
1856). 
v. CESATI, in Rabenh. Herb. Mycol. Nr. 1931. 
CASPARY, Bemerk. über Rhizomorphen (Bot. Ztg. 1856, p. 897). 
FUCKEL in Bot. Ztg. 1870, p. 107. 
R. HARTIG, Wichtige Krankh. d. Waldbäume, 1874. 
BREFELD, Unters, über Schimmelpilze III, 136. 
