TAXONOMY OF THE PILOBOLIDAE 221 



in diameter (in dwarfed specimens only 80 [x), membrane encrusted, 

 the upper zone cutinised, persistent, the lower gelatinous, de- 

 liquescent ; columella flattened, broadly adnate, 150-180 x 

 90-100 [i.. Spores cylindric-ellipsoid, smooth, hyaline, 18-20 x 8-10[jt, 

 (sometimes as much as 24 [x long), granular within, agglutinated ; 

 chlamydospores few, intercalary in the submerged mycelium ; 

 zygospores not seen. 



On dung of horses and rabbits. France. AUied to P. anomala, 

 from which it differs chiefly in its larger spores. It forms a gall with 

 Chaetocladium Jonesii. 



Illustration : Fig. 111. 



Bibliography. — The following list includes all those papers and 

 books which refer more particularly to the species of the Pilobolidae 

 and their difterentiation. Some additional works, which treat of the 

 physiology, ecology, and other aspects of the group, are cited in the 

 preceding Chapters written by Professor Buller. 



BIBLIOGRAPHY OF THE PILOBOLID.E. 



Anderson, R. S. — " The Validity of the genus Pilaira," in University of Iowa Studies, 



vol. XV, pp. 3-5. pi. 1 (1933). 

 Bainier, G.— " Etude sur les Mucorinees," Paris (1882) : pp. 33-48, P. oedipus, 



f. 1-10, P. longipes, f. 11-13, P. Kleinii, f. 14, 15, P. roridus, f. 16, P. exiguus, 



f. 17 ; pp. 29-32, Pilaira Cesatii, f. 16-18 (on another plate). 

 Baker, Henry—" Natural History of the Polype Insect," chap, xi, pi. 22, f. 9, 10 



(1744). 

 Bary, A. d^-" Vergleich. Morph. u. Biol, der Pilze," p. 77, f. 38, P. oedipus (1884). 

 Berkeley, Rev. M. J.—" Fungi," in Smith's English Flora, vol. v, part 2, p. 231 



(1836). 

 Bolton, James — " An History of Fungusses growing about Halifax," vol. iii : pi. 132, 



f. 4, Mucor roridus ; pi. 133, f. 1, Mxicor urceolatus (1789). 

 Bonorden, H. F.— " Handbuch der allgemeinen Mykologie," p. 128 (1851). His 



figure 203, called Pilobolus cnjstalUnus, represents a form of P. Kleinii. 

 Brefeld, O.— Mittheilung in Sitzungsber. d. Gesellsch. naturf. Fr. zu Berlin : 



" Copulirende Pilze " in Bot. Zeitung, vol. xxxiii, pp. 850-3 (1875). 



