190 
ENDOSPOllE^. 
[aecyria. 
Plato LXX., A— a. sporcangium with expanded capillitium, x 20 ; b. 
capillitium of upper part, x 600 ; o. capillitium of lower part, x GOO • 
d. spore, x 600 (Ceylon) ; e. sporangia, x 20 ; /. capilliiium of upper partj 
X 600 ; ff. capillitium of lower part, x 600 (Iowa). 
This species has been principally recorded from the United States, 
and is well described by Prof. Macbride ; the faint spiral bands on 
the threads are either distinct or absent in different part.s of the same 
capillitium, and their presence is not a sufficient character to remove 
the species from the genus Arcyria, with which it agrees in all other 
respects. Two gatherings of A. stqmta have been obtained from 
India ; one from Nepaul (K. 951), and one from Ceylon (B. M. 709). 
Both are marked A. panicea ; the first is orange-red, the other bright 
scarlet ; in both the capillitium forms a net of freely branching 
sinuous threads, with a border of closely-set blunt cogs ; in some parts 
the thickenings consist of scattered spines, and towards the cup many 
of the threads are nearly smooth ; throughout the network the 
characteristic spiral markings are more or less present, but indistinct 
in the specimen from Nepaul ; there are many attachments to the cup, 
and numerous free ends. 
Hal. On dead wood.— Ceylon (B. M. 709) ; Nepaul (K. 951) ; 
Mass. U.S. (L:B.M.159) ; Philadelphia (B. M. 950) ; Iowa (L:B.M.159). 
8. A. jlava Pers., in E,omer, N. Mag. Bot., i., p. 90 (1794). 
Plasmodium watery-wliite, in rotten wood. Sporangia cylindrical, 
stipitate, clustered, 1-5 to 2 mm. high, 0-3 to 0*5 mm. broad; 
ochraceous-yellow or pale buff. Cup of sporangium-wall mem- 
branous, flaccid, reticulated and often spinulose on the inner 
side, interruptedly phcate. Stalk short, or elongated and weak, 
filled with spore-like cells, buff. Capillitium a very elastic 
network of pale yellow, terete or flattened threads, 3 to 4 /a 
diam., expanding into a drooping column 8 to 12 mm. in length, 
free from the cup, or with few attachments ; thickenings on the 
threads in the form of sharp spines and half-rmgs arranged in 
a loose spiral, and of scattered spinules and short lines of broken 
reticulation; free ends more or less numerous, vsdth clavate tips. 
Spores pale yellow, nearly smooth, marked with a few scattered 
warts, 6 to 8 /X diam, — Trichia nutans Bull., Champ., p. 122, t. 
502, f. 3 (1791). Ao'cyria nutans Grev., Fl. Edin., p. 455 (1824) ; 
Host., Mon., p. 277 ; Cooke, Myx. Brit., p. 72 ; Blytt, Bidr. K. 
Norg., Sop. iii. (1892), p. 11; Macbride, in Bull. Nat. Hist, 
Iowa, ii,, p, 125 ; Mass,, Mon., p, 150. 
Plate LXIX., A. — a. empty sporangia seated on a common hypotballus, 
with expanded capillitium, x 20 ; b. capillitium, with portioi^ of the cup of 
the sporangium, and spore, x 600 (England). 
Hah. On dead wood. — Lyme Regis, Dorset (L:B.M.160) ; Leyton- 
stone, Essex (L:B.M.160) ; Kent (B. M. 1151) ; Camden Town, 
London (B. M. 1152) ; Batheaston, Somerset (B. M. 289); Leicester 
(B. M. 284) ; Boynton, Yorkshire (B. M. 1148) ; France (B. M. 970) ; 
Germany (B. M. 722); Poland (Strassb. Herb.); Iowa (L:B.M.160) ; 
S. Carolina (B. M, 969), 
9. A. (Erstedtii Rost,, Mon,, p, 278 (1875). Plasmodium 
watery-white, in hard wood of fir, etc. Sporangia cylindrical, 
