114 
mm. 
I^. Californica^ A, Br. — The following is taken from Braun's 
''Fragmente/' edited by Norstedt, 1883. 
''Color, a fine dark green, without incrustation. Habit somewhat 
similar to T. nidifica^ but with more numerous verticils and heads, 
one above another; nothing of the long lower leaves could be seen in 
in the fragments. The number of leaves, whether the lower were 
simple and whether there were sporangia in the fundus of the verticils, 
must be determined by better specimens. Terminal cell o. 10-12 
long, about o.os"^^- broad. An antheridium Avhich had fallen off 
measured 0.44™"''* in diameter, but further measurements are needed. 
Sporangia almost globular; nucleus dark brown, but transparent, with 
8-9 visible ''windings" (on one side), smooth, 0.38""^- long, o 32"''''- 
broad. ^ Very nearly related to T. nidifica, but distinguished by its 
sharp tips; from T. apicitlata, separated by its smaller sporangia with 
fewer windings, and by its general appearance; also distinct from T, 
longicoma by its many-celled segments and sharp tips, as well as by 
the shortness of the ultimate cells. — North America, Maria County, 
California, under willows, in slow-flowing streams. H. Bolander, Mar. 
27th, 1865, comm. Dr. Engelmann, Aug, 1869." 
I have received speciiiiens from Dr. Engelmann from ** Marion 
Co., Cal., H. Bolander, April, 1863," and have also examined very 
fine and perfect specimens in Prof. Gray's Herbarium at Cambridge, 
from " Swamps near San Rafael, Marion Co., Cal.,*' and am able to 
supplement Prof. Braun's description as follows: 
Plant o.io"'*, becoming much branched (bushy); the fertile verti- 
cils on elongated peduncles, not crowded into dense masses; stems 
grass-green, conferva-like, about 600// in diameter. Sterile nodes 
two to four, of 12-15 leaves; of these, 6-8 seem to be normal and the 
others shorter and adventitious. Leaves about 360/i in diameter, once 
divided into four leaflets, which are 4-6- or 7-celled; the adventitious 
leaves (intermediate in the verticil and not in the normal series), are 
usually shorter and not divided. The measurements of the leaflets gave 
the following diameters: first segment 285, second 240, third 210, 
fourth 150, fifth 135, sixth (or mucro) 50 broad and 170// long. The ar- 
ticulations are some what constricted and the walls thin and diaphanous. 
The fertile verticils are densely crow^ded with leaves and fruit, the 
internodes being very short (as in other TollypelltE). The fertile leaf 
has usually two fertile nodes, each bearing three fruiting-cells (one 
antheridium and two sporangia) on its ventral aspect and three leaf- 
lets or rays on its dorsal. The rays and longer terminal leaflet are 
4-6-celIed. Sporangia nearly globular, coronula persistent, the ulti- 
mate cells somewhat elongated. Nucleus brown, with 8-9 stri^, which 
are not prominent, varying from 285-335// long and 300-320/* broad. 
Antheridium rather long-stalked, 240-265/i in diameter (I saw none 
so large^as those Prof. Braun speaks of). Sporangia in the fundusof 
the verticil, but not as numerous as in some other species. 
T. STipiTATA, nov, ^/.— Statura o.io-o.i5"*- alt. Color viridis. 
Folia verticillorum sterilium divisa, ter-articulata, acuta. Folia fer- 
lilia divisa, nodis fructificationem gerentibus duobus, radiis indivisis 
3-cellularibus acutis. Capitula fertilia laxa. Sporangia in divisura 
foliorum et in fundo verticilli aggregata numerosissima, longe stipi- 
