LYCOGALA.J LYCOGALACEA 209 



Plate LXXV., A. — a. sathalium, natural size ; h. reticulated surface of 

 cortex, X 20 ; 0. vertical section of cortex ; (1) outer layer composed of 

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

 yeUow 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 ; <?. capillitium 

 consisting of emp'ty 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 distriljuted reticulation, x 600 (N. America). 



American specimens received from Dr. Rex and Prof. Macbride 

 are identical in structure with those in the Strassburg Herbarium. 



Haib. On dead wood. — Germany (Strassb. Herb.) ; Ceylon (K. 1732) ; 

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

 8. CaroHna (B. M. 838). 



2. L. miniatum Pers., in Rbmer, 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-waUed tubes, varying from 3 to 20 /a 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 Hnes and warts, 5 to 7 /«, diam. — Nees, 

 Syst. PUze, p. 103 ; Grev., Sc. Crypt. FL, t. 38. Lycoperdon Epi- 

 dendru/m Linn., Sp. PL, ii., p. 1184 (1753). Lycogala Epide'Adrwm 

 Eost,, 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 BuU. Nat. 

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



Plate LXXV., B. — a. sporangia, natural size ; h. surface of cortex, warted 

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

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

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

 tium, X 80 ; (i. 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 sethalia the outer layer is often 40 fi thick, and the 

 interlacing threads broad and abundant, with gelatinous outer walls 

 6 to 10 /i thick : while the homogeneous inner layer sometimes exceeds 

 60 n in thickness. 



Hah. 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. 841a) ; French Guiana (Paris Herb.) ; 

 Brazil (Paris Herb.). 



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