1292 Wisconsin Academy of Sciences, Arts and Letters. 
Tricilia persimilis Karst. 
1868. Trichia 'persimilis Karst., Not Sacllsk Fenn. Fork., IX., 
p. 353. 
Saccardo: ‘‘Sporangia aggregated, nearly or quite spherical, 
brownish, with a bronze-lustre, sessile; elaters cylindrie, yellow, 
4-6y, apices smooth, generally curved, twice as long as the di¬ 
ameter of the elater; spiral bands 3-4, prominent, spaces between 
twice the width of the bands; bands armed with scanty, promin¬ 
ent, curved, hyaline spines, 8-10y long, 4-6/x thick; spores wait¬ 
ed, yellowish, globose, 12-14^.” 
Macbride says, in part: “The sporangia are golden yellow to 
tawny, anon iridescent with metallic lustre; hypothallus thin, 
but usually very distinct; capillitial mass ochraceous or tawny 
yellow, the elaters long, even, about 4/x wide, the spirals four, 
more or less spinulose, generally joined by longitudinal ridges, 
the apices short, tapering regularly, anon bifurcate; spore-mass 
concolorous, spores marked by an irregular or fragmentary 
banded reticulation, the bands broad, flat, and pitted, 10-12^. 
Plasmodium said to be white. It never shows at maturity 
the brilliant golden yellow fluff that hangs in masses about the 
open and empty peridia of T. favoginea .” 
Lister calls the elaters 4-6/x thick, with the bands sometimes 
produced at the apex into two or three diverging points, longi¬ 
tudinal striae inconspicuous. He finds the spores to be 11 to 14ft 
in diameter, with the reticulation broken, or represented by reg¬ 
ular pitted warts, border interrupted. He says also: ‘ ‘ The oc¬ 
currence of the long spinous processes on the elaters, noted in 
the original description of T. persimilis , is not a constant char- 
atcer.’ ’ 
Massee adopts the name T. affinis De Bary. His description 
is scanty and does not differ from those quoted above excepting 
that he says that this species is distinguished by the presence of 
pits on the raised bands of the epispore, and by the absence of 
raised ridges running parallel to the long axis of the elater. 
I found considerable difficulty at first in distinguishing this 
species from T. favoginea, from the descriptions as given above 
The color is not markedly different from that of T. favoginea 
nor from that of T . scabra; the manner of growth is the same; the 
