lUUNIONK STRAORDINARIA IN SIENA 155 



DEUTEROMYCETAE. 



Phyllosticta perpusilla Sacc. sp. n. 



Pycnidiis perpusillis, oculo inermi non visibilibus, globu- 

 losis, 50-63 jx diam., seriatim parallele gregariis, nigrican- 

 tibus, vertice obtasis, dein pertusis; contextu minute cellu- 

 ioso, fuligineo; sporulis oblongis, miimtissimis, 3^1, utrinque 

 acutulis, hyalinis; maculis vix ullis. 



Hai), in calamis raorientibus Junci acuti, Tripoli : Ain Zara, 19. II. 



Placosphaeria ? CoRONiLLAE Sacc. sp. II. (ad interim). 



Stromatibus dense gregariis, interdum confluentibus ex 

 oblongo irregulariter angulosis, applaiiatis, epidermide ve- 

 latis, vix prominulis, 0,5 mm. long., contextu eximie paren- 

 ch\'matico, fuligineo, cellulis globoso-hexagonis, 11-15 jit 

 diam. parietibus crassiusculis nigricantibus praeditis, cellulis 

 raarginalibus panilo majoribus et pallidioribus; ostiolis et 

 loculis obsoletis ; sporulis nondum evolutis. 



Hai). Mesellata : (in foliis caulibusque subvivis Coronillae scor- 

 pioidis). Uadi Zafrania, 12. IV — Affinis videtui' Plac. Ono- 

 hrijchidis, sed multo minor. 



DiLOPHOSPORA GRAMiNis Desm. — Tarhuna : Colline ad E. di 

 Kars Tarhuna, 28. Ili (in glumis Scleropoae niemphyiicae). 



AsTEROMA GRAMiNis Wost. — Tarhuna : Kasr Daun, 7. IV, Col- 

 line ad E. di Kasr Tarhuna, 28. Ili ; Abiar Milgah sul Ras 

 Has, 2. III. — Mesellata : Msid di Mesellata 9. IV ; Uadi 

 Gherrira, 15. IV.— Garian : Bu Gheilan 24. IV (in foHis 

 Stipae tenacissim.ae, saepe socia Sphaerellae graminis). 



CoNiOTHYRiuM sTiGMATOiDEM Sacc. — Tarhuna : Ras Ghenai, 

 25, IH (in caule Pituranthi sp., socio Macrosporio lineari). 



Septoria Henningsiana Wint. — Vide: Phyllachora? melaena. 



Septoria Bromi Sacc. — Tarhuna : Abiar Milgah, sul Ras Neb. 

 19. III (in foliis Bromi ru'beniU simul cum Ascochyta 

 Oryzae Catt. forma Bromi). 



Ascochyta Oryzae Catt. forma Bromi— Vide: Septoria Bromi 

 Sacc. 



Camarosporium tarhunense Sacc. sp. n. 



Pycnidiis laxe, longitudinaliter gregariis, subcutaneo- 

 erumpentibus, globulosis, obtuse papillatis, 250-300 }i diam., 

 nigris ; contextu celluioso, fìrmulo, fuligineo ; sporuis ellip- 



