414 BOTANICAL GAZETTE [JUNE 
size and dull color, as well as from the fact that the sori tend to become 
somewhat sunken in the viscous surface of the substratum. No rising rod- 
masses were obtained owing to the age of the culture, so that it was impos- 
sible to determine the dimensions of the rods. The general yellowish mucus 
envelope about the cysts is usually readily distinguished, and the primary 
cysts possess a sufficiently well-defined wall which in turn forms a common 
envelope about the thin-walled polygonal secondary cysts. 
Polyangium sorediatum, nov. sp. Plate XXVII, figs. 22-24. 
Sori dull orange-red, irregularly lobulated, the primary lobes 
usually forming more or less clearly distinguished irregularly 
rounded secondary lobules; the whole sorus consisting of a com- 
pact mass of small cysts, somewhat firmly coherent, the matrix 
forming a very thin scarcely distinguishable film about them. 
Cysts irregularly rounded, often somewhat polygonal from press- 
ure, rarely double, the wall thick and clearly defined, their aver- 
age diameter 6—7 w, the smallest about 34. Rods about 3~5 x 0.8. 
On rabbit dung from Sandy Run, S. C. 
This species has been seen but once and in small quantity, attempts to 
cultivate it having failed. It is abundantly distinguished by its large sori 
and very minute cysts, which seem rarely divided in two, probably through 
accidental adherence. 
PoLyANGiuM and CystosacrEeR having proved synonymous, 
the former genus should include in addition to the above new 
species P. viTeELLINUM Lk. (=C. aureus Thax.), P. simplex 
(Thax.} n.comb., and P. fuscum (Schrét.) n. comb. ee ==C, aureus 
Thax.). 
CHONDROMYCES cRocaTus B. & C. has within the last few 
years been found at New Haven, Conn., by Professor Setchell; 
at Tabor, Iowa, by Professor H. Metcalf; and in Florida by 
myself; while Graf Solms Laubach (Bot. Zeit. 62:39), in a 
criticism of Dr. Zederbauer’s paper above mentioned, states that 
he found it on the fruit of Pandanus during his visit to Java. 
CHONDROMYCES SACCHARI Speg. had been described in the 
Revista de la Facultad de Agronomia y Veterinaria la Plata, no. 
Xvi, June 1896, but the description had not been seen when I 
published my last paper. The axis of this species is described 
as being formed ‘tex hyphis coalescentibus,” although in the 
note following the description this statement is accompanied with 
