308 
ON THE PILOBOLIDiE. 
KEY TO THE SPECIES OE PILOBOLUS. 
1. 
2 . 
3. 
4. 
5. 
6 . 
Swelling ovoid 
Swelling globular, or nearly so .. 
Spores oval; stem slender 
Spores globular; stem relatively short and thick 
Spores small, less than 10 ,a long 
Spores more than 12 y long 
Basal reservoir erect or oblique, globular 
Basal reservoir creeping, elongated 
Epispore thick, conspicuous 
Epispore thin, not conspicuous 
Sporange opaque ; stem slender .. .. Kleinii , 
Sporange transparent 
Sporange narrower than swelling ; spores elliptic 
1 
6 
2 
4 
crystallinus 
3 
Kleinii 
long ipes 
cedipus 
5 
spluerospora 
exiguus 
roridus 
{ Sporange scarcely narrower than swelling ; spores globular nanus 
The following is an attempt to show the affinities of these species 
and those of Pilaira : — 
longipes roridus— 
I I 
Kleinii-crystallinus 
I 
forma sphaerospora 
oedipus 
.1 
exiguus 
I. PILOBOLUS, Tode. 
Stem erect, continuous, separated from the mycelium 
below by a septum, expanded above when mature. Sporange 
projected; upper hemisphere with an indurated cuticle, and 
a diffluent zone below. A thin gelatinous layer between the 
spores and the columella. Spores roundish or oval, numerous. 
1.—PILOBOLUS CEDIPUS,* Montague. 
Pilobolus cedipus , Montagne, “Mem. Soc. Linn. Lyon,” pp. 1-7, f. a-i 
(1828); “ Sylloge,” p. 299 (1856)—Rabenh., “Fung. Eur.,” No. 382— 
Coemans, “Monogr.,” p. 59, pi. 1, f. 1-20 (1861)—Fuckel, “ Symb. Myc.,” 
p. 73 (1869); exs. 2204—Van Tieghem, “ Nouv. Recli. Muc.,” ex An. Sc. 
Nat., p. 43 (1875)—Saccardo, “ Michel.,” ii., 372, chlamydospores ex New 
Jersey, U.S.A. (1881)—Ellis, No. 3360—Rainier, “Etude,” p. 43, pi. 2, 
f. 1-10 (1882)—Grove, “ Journ. Bot.,” p. 131, pi. 245, f. 3 (1884). 
Pilobolus crystallinus, Cohn, “ Entwickelungsgescli.,” pi. 51-2 (1851). 
Pilobolus reticulatus, Van Tieghem, “ Trois. Mem.,” p. 25, note (1878). 
Hydrophora vexans, Awd. in Collect., sec. Fuckel. 
Non P. cedipus, Klein, nec Brefeld. 
dimidiata 
mgrescens 
Cesatii 
Mucorid^ 
* Not CEdipus, but adjectival, “ swoln-footed.” 
