50 NEW YORK STATE MUSEUM 



with spores 15 x 3 to 5 /a; conidia 15 to 50 x 3.5 fx. What appears 

 to be the same is a collection by J. B. Ellis, Newlield, N. J., October 

 1874, on dead stems of Aster d u m o s u s (comm. to Peck), 



Phyllosticta omphaleae Dearness (&; House, sp. nov. 



Discoloring extensive areas, 2 to 3 cm broad along the margin 

 of the leaves, sordid yellow at first and later whitening, bordered 

 by a raised reddish-brown margin. Pycnidia epiphyllous, erumpent, 

 black, very numerous, 4 or 5 to a square millimeter in the whitened 

 portions of the spots; the perforate stomata enlarging with age 

 giving a melanconial appearance to the old pycnidia. Conidia 

 hyaline, oblong, continuous to 2-nucleate, 4 to 6 x 2 ;u,, on sjx)ro- 

 phores of various lengths up to 15 /x. 



On leaves of Omphalia sp. ( Euphorbiaceae). Cajimas, Cuba. 

 C. F. Baker, no. 2889. March 14, 1906 (Type in herbarium of 

 N. Y. State Museum). 



Ramularia impatientis Peck 

 Doctor Peck (34th R'ep't, p. 47) states that the spores are epiphyl- 

 lous. Specimens collected later by Peck at Genesee falls, on leaves 

 of Impatiens fulva, have spores amphigenous and even 

 more abundant on the lower side of the leaf than -on the upper 

 surface. 



Rhabdospora mirabilissima (Peck) Dearness, comb. nov. 



Septoria mirabilissima Peck, N. Y. State Mus. Bui. 157, 

 P- Zi, 115- 1912. 



On living stems of white pine seedlings, Saranac lake plantations. 

 C. R. Pettis, April 191 1. The spores are long and tortuous or 

 ribbonlike with a peculiar greenish color. The characters place 

 it in Rhabdospora rather than in Septoria. 



It is obviously related to, and should be compared with authentic 

 European material of Rhabdospora pini (B. & C.) Sacc. 

 (Cryptosporium pini B. &C.). The fact that the disease 

 is quite injurious to young living pines and has been found in the 

 state nursery, makes further investigation desirable which may lead 

 to its identification with the European species mentioned above. 



Rhopographus clavisporus (C. & P.) Sacc. 

 On dead culms of Ph r agm i t i s phragmitis (L.) Karst. 

 Bergen swamp, Genesee cotint^, H. D, Hoiise, August 14, 1916, 



