ON THE PILOBOLIDiE. 
385 
4. Sub-species b. — P. KLEINII, Van Tieghem. 
Pilobolus roridus, Cnrrey, “ Linn. Journ.,” i., 162, pi. 2 (1857). 
Pilobolus crystallinus, Klein, “ Zur Kennt. Pil.,” p. 860, pi. 23-7, 
f. 1-52 (1870)—Brefeld, “ Bot. Unters.,” iv., 70, pi. 4, f. 15 (1881). 
Pilobolus Kleinii , Van Tieghem, “ Trois. Mem.,” p. 26, pi. 10, f. 6-10 
(1878)—Saccardo, “ Myc. Ven.,” No. 454—Bainier, “ Etude,” p. 43, pi. 
2, f. 14-5 (1882)—Grove, “ Journ. Bot.,” p. 131, pi. 245, f. 4 (1884). 
Stem rather slender; swelling ovoid; basal reservoir 
roundish, generally concealed; spores orange, oval, unequal, 
averaging 15^x8^. (PI. iv., figs. 1-8, 10-13.) 
Stem not as high as in crystallinus ; basal reservoir never inter¬ 
calary ; sporange never reticulated. Columella sometimes colourless ; 
spores bright orange, not granular, germinating only in decoction of 
dung or other nutrient solution. There is usually a band of orange 
granular matter at the base of the swelling, which is wanting in 
P. eu-crystallinus. 
On all kinds of dung; probably common, but for a long time con¬ 
founded with P. eu-crystallinus. 
England, France, Germany, Italy. 
P. KLEINII, forma SPHJER0SP0RA, mihi. 
Pilobolus lentigerus, Corda, “Icon.,” i., 22, pi. vi.. f. 286 (1837)— 
Babeu., “ Krypt. FI.,” p. 136 (1844)—Bonorden, “Haudbk.,” p. 128 
(1851)—Coemans, “ Monogr.,” p. 62 (1861). 
Pycnopodium lentigerum, Corda, “Icon.,” v. 18 (1842); “Anleit.,” 
p. 71, pi. C, f. 25 (1842). 
Pilobolus crystallinus, Bonorden, “ Handbk.,” p. 128, pi. 10, f. 203 
(1851), “ die sporen sindrund und gelbP 
Pilobolus cedipus, Brefeld, “Bot. Unters.,” iv., 69, pi. 3, f. 1-10 ; pi. 4, 
f. 11-14 (1881)—vars. b et c, Klein, l.c., p. 360, pi. 27, f. 50; pi. 26, 
f. 40 b (1870). 
Pilobolus Kleinii, forma sphcerospora, Grove, “Journ. Bot.,” p. 132, 
pi. 245, f. 5 (1884). 
Sub P. Kleinii, Van Tieghem, “ Trois. Mem.,” p. 26 (1878). 
Stem shorter than in the normal form; spores round, 
sometimes irregular, orange, lG-21/q often granular. (PI. iv., 
fig. 9.) 
With P. Kleinii, at the beginning of growth, passing gradually into 
the normal form. The spores vary considerably in size. The figures 
and descriptions of the authors quoted show that they had this form 
before them, and not, as has been surmised, P. oedipus. Corda’s 
P. lentigerus is only a badly nourished form, such as is often met with. 
Coemans’ intermedia is the transition form from this to P. Kleinii. 
England, France, Germany, Austria. 
5.— PILOBOLUS LONGIPES, Van Tieghem. 
Pilobolus longipes, Van Tieghem, “Trois. Mem.,” p. 27, pi. 10, f. 
11-15 (1878)—Bainier, “Etude.,” p. 46, pi. 2, f. 11-13 (1882). 
Pilobolus roridus, Brefeld, “Bot. Unters.,” iv., 70, pi. 4, f. 17 (1881). 
Stem tall, slender; swelling ovoid; basal reservoir long, 
cylindrical, creeping, external; spores orange, equal, oval or 
almost globular, 13^ x 11 /q with a thickened sometimes 
bluish-black membrane. (PI. vi., fig. 1.) 
