LYCOGALA.] LYCOGALACE.E. 209 



Plate LXXV., A. a. sethalium, natural size ; b. reticulated surface of 

 cortex, x 20 ; c. vertical section of cortex; (1) outer layer composed of 

 interwoven, empty, flattened tubes ; (2) vesicles containing yellow or reddish- 

 yellow matter, with the interspaces between them traversed by tubular 

 processes, which are more or less continuous with the capillitium ; (3) 

 homogeneous inner layer, perforated by the capillitium, x 80 ; d. capillitium 

 consisting of empty tubes, occasionally containing spores in the rounded 

 ends and in limited spaces in the continuity of the tubes, x 80 ; e. part of 

 capillitium tube, showing the papillose surface, x 600 ; /. spores, showing 

 unequally distributed reticulation, x 600 (N. America). 



American specimens received from Dr. Rex and Prof. Macbride 

 are identical in structure with those in the Strassburg Herbarium. 



Hob. On dead wood. G-ermany (Strassb. Herb.) ; Ceylon (K. 1732) ; 

 Philadelphia (L:B.M.171) ; Ohio (L:B.M.171) ; Iowa (B. M. 827); 

 S. Carolina (B. M. 838). 



2. L. miniatum Pers., in Komer, N". Mag. Bot., i., p. 87 (1794). 

 Plasmodium rose-red, in rotten wood. Sporangia subglobose, 

 sessile, crowded or scattered, 2 mm. to 1 cm. diam., pinkish -grey, 

 yellowish -brown or red-brown, minutely warted ; cortex varying 

 in thickness, with superficial vesicles. Capillitium arising from 

 all parts of the inner side of the cortex in loosely branching and 

 anastomosing, thin-walled tubes, varying from 3 to 20 /x diam., 

 more or less wrinkled, with numerous free branches, clavate or 

 rounded at the ends ; mass of capillitium and spores pinkish grey. 

 Spores almost colourless, closely reticulated over the greater part 

 of the surface, the remaining part marked with a loose reticula- 

 tion, or with short raised lines and warts, 5 to 7 /x diam. Nees, 

 Syst. Pilze, p. 103 ; Grev., Sc. Crypt. Fl., t. 38. Lycoperdon Epi- 

 dendrum Linn., Sp. PI., ii., p. 1184 (1753). Lycogala Epidendrum 

 Host., Yersuch., p. 3 (1873) ; Mon., p. 285 (1875) ; Cooke, Myx. 

 Brit., p. 75; Zopf, in Schenk, Handb. der Bot., iii., 2, p. 168; 

 Blytt, Bidr. K. Norg., Sop. iii., p. 12 ; Macbride, in Bull. Nat. 

 Hist. Iowa, ii., p. 127 ; Mass., Mon., p. 121. 



Plate LXXV., B. a. sporangia, natural size ; 1), surface of cortex, warted 

 with vesicles, x 20 ; c. vertical section of cortex ; (1) upper layer contain- 

 ing interwoven thick-walled tubes, and bearing on the surface simple or 

 compound vesicles ; (2) homogeneous inner layer, perforated by the capilli- 

 tium. x 80 ; d. capillitium, consisting of empty tubes, rugose with ridges 

 and folds, x 180 ; e. part of capillitium tube, and spores, x 600 (England). 



In small sethalia the cortex is usually thin, the interlacing threads 

 in the outer layer narrow and scanty, and the homogeneous inner layer 

 membranous; in larger aethalia the outer layer is often 40 p. thick, and the 

 interlacing threads broad and abundant, with gelatinous outer walls 

 5 to 10 p, thick : while the homogeneous inner layer sometimes exceeds 

 50 /j, in thickness. 



Hab. On dead wood. Common. "Wilts (B. M. 1, 6) ; Lyme Regis, 

 Dorset (L:B.M.172) ; Orton Wood, Leicestershire (B.M.) : France 

 (B. M. 733) ; Germany (B. M. 728) ; Poland (Strassb. Herb.) ; Norway 

 (B. M. 734); Finland (B. M. 732); Italy "(B. M. 737); Bermuda 

 (B. M. 745) ; Philadelphia (L:B.M.172) ; Iowa (L:B.M.172) : Island of 

 St. Thomas, Africa (B. M. 1156) ; Ohio (L:B.M.172) ; S. Carolina 

 (B. M. 841) ; Texas (B. M. 841) ; French Guiana (Paris Herb.) ; 

 Brazil (Paris Herb.). 



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