Report of the Botanist. 59 



PUCCINIA SPRETA Pk. 



Leaves of Mitella nuda. Buffalo. Clinton, Leaves of Mitella diphylla. 

 Griffins. 



PUCCINIA STRIOLA Lk. 



Leaves of Car ex irrigua. Summit. 



USTILAGO URCEOLORUM Tul. 



Fruit of Carex irrigua. Mount Marcy. The spores in these specimens 

 are large and much less angular and unequal than usual. 



Stilbum giganteum Pk. 



I find this associated with Patellaria leptosperma Pk. in such a way as to 

 suggest the probability, at least, that it is a form of the latter species. 



Helvella sulcata Afz. 



The prominent character in this species, as indicated by the name, is the 

 sulcate stem. The furrows are very deep, and extend, without interruption, 

 the entire length of the stem. The whole stem, as shown by a cross-section, 

 is made up of the costae intervening between these furrows. I do not find the 

 stem "stuffed," as required by the description in Syst. Myc. Vol. ii, p. 15. 

 The pileus is generally darker than that of H. crispa. 



Our New York species of Helvella readily fall into three groups depending 

 on the character of the stem. The following tabular arrangement will exhibit 

 this feature, and aid in tracing the species. 



New York Species of Helvella. 



Stem even, stout, three lines or more in diameter. 

 Pileus inflated, g-yrose-lobate. 



Spores elliptical H. esculenta Pers. 



Spores globose H. sphserospora Pk. 



Pileus detiexed, lobate, spores elliptical H. Infula Scliceff. 



Stein costate-sulcate, stout. 



Pileus white H. crispa Ft. 



Pileus colored H. sulcata Afz. 



Stem even, slender, less than two lines thick. 



Stem glabrous H. gracilis Pk. 



Stem velvety-pruinose H. elastica Bull. 



The first and second species in the table belong to the more recent genus 

 Gyromitra. The last one, H. elastica. is sometimes nearly black, and is, 

 perhaps, then, H. atra. These two, according to the descriptions, have the 

 pileus free, but in our plant it is sometimes adnate to the stem. H. lacunosa 

 and H. ephippium have not yet occurred with us. 



Cenangium Cerasi Ft. 



This is not limited to cherry in its habitat, but occurs also on birch. 



Xylaria digit at a Grev. 



One of our most common Xylarias agrees with the characters ascribed to 

 this species, except in the size of the spores. These are described as .0007'- 

 .0008' long. In our plant they are about .0005 long. Because of its short 

 spores, it has sometimes been referred to X. Hypoxylon ; but in this species 

 the stem should be villose, a character which our plant does not exhibit. The 

 difference between its spores and those of X. digitata is so marked and so 

 constant that it should not be disregarded. I therefore propose to distinguish 



