CniBRARIA.] 
IIETERODERMACE^. 
145 
10. C. ■ pyriformis Sclmid., Nov. Gon. PL, p. 4 (1797). 
Plasmodium ? Total height 1 to 1-7 mm. Sporangia turbinate 
or globose, stipitate, erect, gregarious, 0-3 to 0-5 mm. diam., 
purplish-brown; cup about one-third the height of the sporangium, 
pale brownish -yellow, perforated and irregularly toothed at the 
margin, or equally toothed, beset with large round purple-brown 
plasmodic granules, 2 to 2-5 fx diam., arranged in broad lines 
radiating from the base or evenly distributed; nodes of the net 
varying in shape and size, charged with dark round plasmodic 
granules and connected by pale brownish -yellow threads. Stalk 
stout or slender, 0-5 to 1 mm. high, dark purple-brown. Spores 
pale ochraceous or pinkish, almost smooth, 5 to 6 /x diam. — Host., 
Mon., p. 237; Cooke, Myx. Brit., fig. 14; Mass., Mon., p. 55. 
a. genuina : sporangia pyriform ; nodes flat, polygonal, often 
branching ; stalks stout, furrowed. 
p. notabilis : (Rex, in litt.) sporangia globose; nodes convex 
and prominent, rounded or irregular ; stalks slender. 
Plate LV., A. — a. sporangia after dispersion of spores, a. genuina, x 20 ; 
b. part of net and cup of sporangium, x 180 (Shrewsbury, England) ; c. 
sporangium from mounting in Canada balsam, x 20 (Germany, Eostafinski's 
type) ; d. part of net and cup of same, x 180 ; e. sporangia after dispersion 
of spores, /3. notabilis, x 20 ; /. g. part of net and cup of brown and dark- 
brown sporangia, x 180 ; 7i. spore and plasmodic granules, x 600 (United 
States) . 
The variety /3. notabilis appears to be the American form of 
C. pyriformis ; it differs from the European gatherings in the globose 
sporangia, the slender stalks, the delicate threads of the net, and in 
the nodes, which, though variable in shape, are usually prominent and 
convex, often approaching forms of C. tenella and C. intricata. It has 
been obtained from several of the American States. The abundance 
of plasmodic granules varies in different gatherings. 
Hab. On dead fir-wood. — a. France (Paris Herb.) ; a. Berlin 
(B. M. 672) ; a. Germany (Strassb. Herb.) ; /S. New York (L:B.M.113) ; 
Virginia (L:B.M.113) ; N. Oarohna (L:B.M.113). 
11. C. languescens Eex, in Proc. Acad. Nat. Sc. Phil. (1891), 
p. 394. Plasmodium? Total height 2*5 to 3 mm. Sporangia 
globose, stipitate, drooping, scattered, 0*25 to 0*35 mm. diam., 
dull red ; cup one-third the height of the sporangium, red-brown, 
shining; beset with purple-brown plasmodic granules, 0-3 to 1 
fx diam., arranged in close lines radiating from the apex of the 
stem ; margin toothed ; nodes of the net purplish-brown, thickened, 
rather prominent, charged with dark granules, polygonal, with 
few free rays, and slender connecting threads ; meshes of the net 
triangular. Stalk very slender, subulate, somewhat sinuous or 
wavy, dark red-brown. Spores pale red, almost smooth, 5 to 6*5 
fx diam. 
Plate LV., B.—a. sporangia after dispersion of spores, x 20 ; b. part of 
net and margin of cup of sporangium, v. 180; c. spore and plasmodic 
granules, x 600 (United States). 
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