l86 ROCHESTER ACADEMY OF SCIENCE. 



septate and constricted at the septa, obtuse, brown, 15-20 x 5-6 [J-. 

 In well developed specimens, one or both the terminal cells are again 

 divided by a septum, making the sporidia 3-5 septate". Another 

 form collected on decorticated Sa/ix limbs, Sept. 1900 has triseptate 

 brown sporidia, constricted, 17 x 623 fi. Here the sporidia are not 

 uniformly transversely septate but occasionally obliquely septate. These 

 forms for convenience may be called L. triseptatum var. diagonalis 

 Fairman, n. var. On decorticated maple twigs, Oct., 1900 another 

 form was found in which the sporidia were iiniseriate, brown, triseptate, 

 20 X 6-7 fJ-, but the sporidia are very acute at the ends, and may be 

 known as vai'. acuta, Fairman, n. var. 



330. Lophiostoma quadrinucleatum Karst. Sacc. Syll. 

 No. 5451. Feltgen, No. 906. On dead branches of Hainamelis vir- 

 giniana, October 2, 1900. Sporidia 3-5 septate, nucleolate, 

 18-24 X 7 I'- On Cor7i2is, Oct., 1900, sporidia brown, 18 x 6-7 ix, 

 quadrinucleate when young. 



331. Lophiostoma pruni E. & E. Journal of Mycology, 

 iv. , p. 64. Proc. Roch. Acad., Vol, I, p. 49 and plate 4, figs. lo-ii. 

 Berlese, Icones Fungorum, Fasc, I, part I, tab. VI., fig. 3. N. A. 

 Pyr. , page 225, plate 25. On Prunns serotina. Lyndonville, April 

 1888. This is another one of the small, perplexing, triseptate Lo- 

 phiostomas. The sporidia are mostly 4 in the ascus, and measure 

 18-22 X 6-8 p.. Berlese says, " affine L. qjiadrimicleato, (a quo 

 loculis eguttulatis prsecipue dif^ert) et Z.. pseiidomacrostomo, sed 

 sporidiis raro 4-5 septatis, et longitrorsum divisis. " 



332. Lophiostoma vagans Fabr. Berlese, Icones, tab. VI., 

 fig. 8. (Z.. pseudoinacrostoimun, Sacc. in N. A. Pyren. , pages 

 225-226.) On dead branches of Lonicera. 



333. Lophiostoma insidiosum (Desm.) Ces. et DeNot. 

 i^Sphceria ?. , Desm. 1841.) Feltgen, No. 915. Berlese, Icones, p. 12 

 and tab. VI., fig. 6. On dead stems of Tanacetiim. On dead stems 

 of wild raspberry, Ridgeway, N. Y. , Sept., 1900. Sporidia brown, 

 5-6 septate, 20-27 x 7 //, armed with acute hyaline appendages. 



334. Lophiostoma rhizophilum (B. & C. ). To this 

 species we have provisionally referred the small triseptate forms found 

 on exposed roots of maple, sumach, etc., and which are hard to 

 separate from L. triscptatnui, except by the different habitat. On 

 roots we find them with sporidia 3-5 septate, or 3 septate, nucleolate, 

 ends acutely pointed with hyaline tips and at times surrounded with 

 mucus. They embrace characters common to L. triseptatum, quad- 



