ij8 natural history bulletin. 



enlarged portion filled with numerous bacteria-like conidia is- 

 in size 17-25 X 30-50;^. I have only examined specimens on 

 Bdula -popidifoJia collected at West Roxbury, Mass., and 

 Cape Ann, by Mr. A. B. Seymour, and at Newton, Mass., b}- 

 Dr. W. G. Farlow. The same species is reported upon 

 Ihlula papyracca Ait. in Mt. Washington. 



ADDENDA. 



The following species was placed under Taphn')ia in the 

 summary (p. 98) but later information shows it to be an 

 Exoasciis. It will be found in its proper place in the list at 

 the close of this paper. 



ExoASCUS .^scuLi [Ellis & EvcrJiart). Plate IV. Fig. 1. 



Bibl. and Svn. : 



Ascoinyces dcfoninins Hark. 



llarkness '85. 



Ascouiyccs dcforniaus var. icsntli Ellis & Everhart. 



Ellis & Everhart '87. 

 llarkness '90. 



This species and Tap/ir/iia Icl/iifcr are the only ones 

 recorded upon any member of the Sapindaccce. Dr. H. W. 

 Harkness has sent me material from California and I have 

 examined that distributed as No. 1887 of North American 

 Fungi, also contributed by Prof. Harkness. It appears upon 

 ^Escidus calif arnica "affecting the young shoots and leaves, 

 which are quickly killed, therefore not much distorted." The 

 smaller leaves bear spots from 2-5mm in diameter which 

 soon become yellowish blisters involving almost the entire 

 tissue, which later thickens and turns a dull red color. The 

 asci are amphigenous, densely packed together, extremities 

 rounded, length i6-i8«, width at upper and thicker portion 

 7-9//, spores elliptical 3X6«. There are no stalk-cells. 



Later (Zoe i: 87, 88,) Harkness states that dense bunches 

 of distorted twigs one foot in diameter are found and the 

 mycelium is evidentl}' perennial. 



