364 PROCEEDINGS OF THE ACADEMY OF [1894. 



Perithecia erumpent in botryoidal clusters often seriately confluent 

 for 1 or more cm., about 2 mm. diam., white inside, flattish above, 

 with a broad papilliform ostiolura. Sporules elliptical, brown, uni- 

 septate, 20-25 x 12-15,", on basidia of about the same length. 



Ascoohyta veratrina E. & E. 



On dead leaves and petioles of Veratrum Galifornicum, Pullman, 

 Wash., Nov. 1893 (Prof C. V. Piper, No. 145). 



Perithecia scattered, sunk in the substance of the leaf with the 

 apex and conic-papilliform ostiolum erumpent, about I mm. diam. 

 Sporules cylindrical, obtuse, 3-4- nucleate, becoming iiniseptate, 

 hyaline, about 12x25-3//.. 



Differs from A. Veratri Cavarra (Fungi Langobardise, No. 98) 

 in its larger, ostiolate perithecia, not on any spots and in its smaller, 

 straight sporules. 



Ascocliyta achlyicola E. & E. 



On leaves of Achhjs triphylla, Seattle, Wash., Aug. 1892 (Prof 

 C. V. Piper, No. 114). 



Spots suborbicular or irregular, 3-15 ram. diam., with a dirty 

 white center and a broad, shaded purple margin. The white center 

 is more or less deciduous. Perithecia epiphyllous, innate-prominent, 

 small (75;/), few on a spot. Sporules elliptical, 2-nucleate, hyaline, 

 5-8 x 25-3//., soon becoming uniseptate. 



Ascocliyta Asclepiadis E. & E. 



On leaves of Asdepias Cormdi, Pleasant Hill, Del., May, 1894 

 (Commons, No. 2,420). 



Spots amphigenous, suborbicular, ^-1 mm. diam., grayish, with 

 darker zones and a shaded, dark- brown border. Sporules oblong- 

 (or ovate-) elli[mcal, hyaline, 6-8 x 3/', becoming faintly uniseptate. 

 Perithecia epiphyllous, innate, black, pierced above, 100-110// 

 diam. 



Heudersonia stygia E. & E. 



On decorticated, bleached wood of a Cottonwood log, Rockport, 

 Ks., Dec. 1893 (E. Bartholomew). 



Perithecia erumpent-superficial, scattered, ovate-globose, 2 mm, 

 diam., or hysteriiform, 1 ram. or raore long, at first with a prorainent 

 papilliforra ostiolum, l)ut soon broadly open above, the upper part 

 finally disappearing, leaving the cup-shaped base filled with abundant 

 sporules and then raore resembling acervuli than perithecia. Sporules 



