STEMONITIS.] 
STEMONITACE^, 
115 
Capillitmm of ferruginous or brown threads, springing from the 
columella, and forming a loose network with numerous broad 
membranous expansions ; meshes of the delicate, superficial net, 
angular, varying from 6 to 16 ya diam. Spores pale ferruginous, 
faintly wart ed, 6 to 9 diam.— Rost., Mon., p. 196 (in part); 
Cooke, Myx. Brit., p. 46 (in part) ; Blytt, Bidr. K. Norg., 
Sop. iii. (1892), p. 9 ; Mass., Mon., p. 85 (in part). 
Plate XL IV., A.— a. sporangia, x 2 ; J. capillitium, x 180 ; c. capillitium 
and columella expanded to form a membranous cap at the apex of the 
sporangium, x 180 ; d. spore, x 600 (England). 
Hah. On leaves and dead wood.— Lyme Eegis, Dorset (L:B.M.85); 
Leighwood, Somerset (B. M. 206) ; Hartham, Wilts (B. M. 210) ; 
France (Paris Herb.) ; Germany (K. 778) ; Freiburg (Strassb. Herb.) ; 
Hungary (K. 1616). 
5. S. Smithii Macbride, in Bull. Nat. Hist. Iowa, ii., p. 381, 
fig. 4 (1893). Plasmodium white. Total height 7 to 12 mm. 
Sporangia cylindrical, densely fasciculate, stipitate, cinnamon- 
brown. Stalk black, 3 to 6 mm. long, arising from a mem- 
branous hypothallus. Columella ceasing below the apex of the 
sporangium. Capillitium as in aS'. ferruginea, but the superficial 
net has rounded, more regular meshes, 5 to 10 //, diam., and the 
threads of the meshes are often rather stout. Spores pale 
ferruginous, nearly smooth, 4 to 6 diam. Stemonitis ferruginea 
Rost., Mon., p. 196 (in part) ; Cooke, Myx. Brit., p. 46 (in part) ; 
Mass., Mon., p. 85 (in part) ; Macbride, in Bull. Nat. Hist. Iowa, 
ii., p. 142. S. mid'ospora List., Morgan, in Cine. Soc. Nat. Hist., 
xiv., p. 54 (1894). 
Plate XLIV., A. — e. sporangia of various sizes, x 2 (England) ; /. capil- 
litium, X 180 (Central America) ; g. spore, x 600. 
The type specimen from Nicaragua has smaller and more delicate 
sporangia than the usual form, which is found throughout the world. 
The longer stalks and minute spores characterise all gatherings, and 
distinguish this species from S. ferruginea. The twenty-six specimens 
in the Kew Herb, are marked S. microspora Lister, but the description 
of S. Smithii is the first published account of the species. 
£fab. On dead wood. — Epping Forest, Essex (L:B.M.86) ; Dudley, 
Stafford (L:B.M.86) ; Luton, Beds (L:B.M.86) ; Berhn (B. M. 622) ; 
Freiburg, Germany (Strassb. Herb.) ; Bohemia (K. 729) ; Mauritius 
(K. 752); Ceylon (B. M. 646); New Zealand (K. 77 1;; Australia 
(K. 758) ; Mass., U.S.A. (B. M. 641) ; Iowa (B. M. 819, 1006) ; S. Caro- 
lina (B. M. 644) ; Nicaragua (B. M. 1004) ; Darien (B. M. 643) ; Chili 
(Paris Herb.) ; Brazil (B. M. 1092). 
SPECIES NOT MET WITH IN THE QUOTED COLLECTIONS 
6. S. Tubulina Alb. & Schw., Consp., p. 102. ^thalium at 
first white, soft, 1| to 2 inches broad, 4 to 6 lines high, orbicular, 
rarely suboblong, basal membranes stout, silvery, peUueid, 
iride.scent, easily removable from the substratum ; surface smooth, 
shining, with hemispherical warts above, corresponding to the 
