Phycomycetae, Mucorace*, Pilobolus. 827 



conidiis e cylindraceo-subellipsoideis, 4-6 « 3, catenulatis, levibus, 

 byalinis. 



Hah. in stercore felino putrescente, socio Pilobolo, La Plata 

 Amer. austr. 



CH/ETOSTYLUM Van Tiegb. - Syll. VTI p. 208, IX p. 337. 



1. Chaetostylum Fresenii Van Tiegh. — Syll. VII, p. 208. — H;cc 3167 

 species, teste Sumstine, esset dicenda: BulhotJiamnidium pulchrum 

 (Preuss) Sumstine, Mycologia II (I9l0j p. -143 et ejus synonyma 

 essent Ascophora pulchra Preuss, Mucor Mucedo Fres. non L., Bul- 

 hothamnidium elegans Klein , Thamnidium chcetocladioides Bref., 

 Th. Fresenii Schr. — Var. variablle Sumstine 1. c. pag. 144. — 

 Hyphis sporangiferis simplicibus, non ramosis, erectis, candidis, 

 5-1 5 mm. altis; sporangiis magnis, candidis, viridi-flavis, sphasri- 

 cis; columella cylindrica; sporis varice magnitudinis, ellipsoideis, 

 6-12 [j.. 



Hah. in bubula (carne bovis) in Pennaylvania Amer. bor. 



PILAIRA Van Tiegh. — Syll. VII p. 188. 



1. Pilaira Saccardiana Morini, Mem. R. Ac Sc. Ist. Bologna ser. VI, 3168 

 t. III (1906) p. 397, cum tab. — Hyphis sporangiferis raro emer- 

 gentibus ex trophocisti rudimentali, saepe absente, exihbus, unum 

 V. binos ramos emittentibus; sporangiis subnigris, globulosis, le- 

 viter depressis, 90-130 [i. diam., zona inferiori non cutinisata, 

 anulum latum in membrana sporangioli efficiente; columella bre- 

 viter conica, intense violacea; sporis ovoideis, hyalinis, 7-10 a. 

 long., tunica levi, pallide violacea. 

 Hah. in fimo in Italia sup. 



PILOBOLUS Tode — Syll. VII p. 184, XVII p. 505. 



1. Pilobolus Borzianus Morini, Mem. Ac. Sc. Ist. Bologna ser. VI, 3169 

 t. III (1906) p. 386, cum tab. — Hyphis sporangiferis binis vel 

 rarius ternis ex unica trophocisti nascentibus, 2,4-5 mm. alt., tro- 

 phocisti ovoidea, parum evoluta; vesicula hyposporangiah globu- 

 losa V. breviter ovoidea, fere hyalina, 200-360 a. iong ; sporangiis 

 globosis valde depressis, intense atro-cferuleis, 160-250 [j.. lat. ; 

 columella semiglobosa v. breve conica, apophysi nulla; sporis in- 

 tense flavis, sphseroideis, 16-23 a. diam,; zygosporis nigris, glo- 

 bosis, 180 [X. diam., membrana valde crassa et levi. 



Hah. in fimo in Italia boreali. — Var. gemlnatus Moriui, I. 



