24 EEYTHEA. 



Camai-osporium Negundinis, E. <fe E., with small {i~^M,) 



scattered, semierumpent black perithecia and subglobose or 

 elliptical, brown, 2 — 3-septate and subfenestrate sporules, 

 10—15x7—10/1. 



Aposphaeria herbicola, E. & E. 



On dead herbaceous stems, Berkeley, California. Blasdale. 

 On Phytolaca decandra, Rockport, Kansas. Bartholomew. 



Perithecia scattered, hemispherical, erumpent-superficial, 

 ^— I mm. diam., black, rough, sometimes collapsing, with a 

 short-cylindrical or strougly papilliform ostiolum which is 

 soon perforated. Sporidia oblong, 2-nucleate, hyaline, 6—8 

 x2— 2|/<. In the specc. on Phytolaca the sporidia are rather 

 smaller, 5— 6xl| — 2//, and the perithecia oftener subcollapsed. 



Aposphaeria Oxytoaphi, E. & E. 



On dead stems of Oxyhaphus nydagineus, Eockport, Kan- 

 sas, Feb., 1893, Bartholomew, No. 903, has the perithecia as in 

 the preceding species, only averaging larger and the sporules 

 shorter and broader ( 3— 4|x2 — 3/t ) , tinged with yellow. 



Aposphaeria Kansensis, E. & E. 



On old Cottonwood boards, Rockport, Kansas, Jan. 25, 

 1893. Bartholomew, No. 880. 



Perithecia erumpent-superficial, about I mm. diam., sub- 

 globose, rough, black, with a strong papilliform, ostiolum 

 soon perforated. Sporules oblong-fusoid, 10— 12x2 1— 3/1, 

 yellowish-hyaline, resembling the sporules of Discosia, but 

 without the terminating bristles. Looks like Aposphaeria 

 fihricola, Berk., but that species (sec. spec. det. by Cke.) has 

 elliptical, olivaceous sporules 3— 3|x2|>u. The surface of 

 the wood occupied by the perithecia is whitened out. 



Melaiiconium Celtidis, E. & E.' 



On dead limbs of CelUs, Louisville, Kansas, Oct., 1893 

 Bartholomew, No. 11G8. 



Acervuli gregarious, hemispheric-tubercular, about 1 mm. 

 diam., becoming umbilicate. Conidia oblong, obtuse, brown, 

 12—15x5—7//, borne on slender pedicels 35—40/4 long. 



