212 THE JOURNAL OF BOTANY 
that of his specimen, in which the lime-knots are larger, and the 
hyaline threads so much reduced that it is brought under P. auri- 
scalpium. 
PERIcHENA connuviowsEs Cel. fil. Myx. Béhm. p. 26, pl. 1, figs. 
an We consider this to be a form of Hemitrichia Karstenit; 
the capillitium is accurately described and figured (J. c.), with small 
bladdery expansions or open cups on the sides of the threads. Dr. 
Celakovsky does not agree with this determination, on account of 
the absence of the spiral markings on the capillitium, characteristic 
of the genus Hemitrichia. We have, however, a specimen that we 
place as H. Karstenii from near Birmingham, in which the capillitium 
; but 
UNDZILLIA TUBULINA Racib. l.c. p. 46. This is the form de- 
scribed in the Brit. Mus. Catalogue, p. 112, as Stemonitis splendens, 
var. y flaccida. 
cua Macrosrerma Racib.; Myx. Bohm. p. 52, leg. Cel. fil. 
August, 1889, ‘teste Raciborski.” The specimen submitted to us 
consisted of several sporangia mounted in glycerine jelly. We care- 
fully compared them with the type of Comatricha laxa Rost. in the 
ROD. 
had a persistent purplish sporangium-wall, purple-brown spinose 
wns. aeiads 
saroides, and we possess specimens in which it is short and rounded. 
We could detect no distinctive character in the mounting to separate 
d threads 8 
spring from the tube of the stalk ; spores 9-10 » diam. 
A. mrecunaris Racib. ; Krakov. leg. Dr. Raciborski, Aug- 26th, 
1882. This is a fairly typical form of A. incarnata Pers. The 
capillitium has the usual spinose thickenings, with few or 2° 
attachments to the thin membranous cup of the sporangium-wall ; 
spores 6-7 p» diam. 
