526 
undulated and finally lobed owing to increased transversal growth, and it also 
becomes incrassated. The small fertile shoots are narrow, nearly terete, angu- 
Fig. 504. 
Phyllophora Brodiei, from Store Belt, near Ny- Fig. 505. 
- borg. May. Fertile lobe of frond with a group Phyllophora Brodiei. Two antheridial crypts. A, not 
of procarps made distinct by staining with hema- fully developed, June. B, ripe, partly emptied, Au- 
toxylin. 47:1. gust. 625: 1. 
late, flattened or canaliculate (fig. 502). The sex organs are irregularly distributed 
in the fertile portions of the frond, and it may happen that some of the small 
shoots are sterile. In fig. 504 is shown a lobe of an undulated margin of a frond 
containing numerous procarps, while most of the other lobes of the same margin 
were without procarps. 
The antheridia are similar to those of Phyll. membranifolia (comp. Dargt- 
SHIRE 1895, p. 29, 1899, p. 257, K. RosENvINGE 1929, p. 14). They are developed 
in small globular cavities in 
the sexual shoots and, when 
ripe, communicate with the 
exterior by an ostiole. Each 
cavity probably derives from 
one superficial cell (fig. 505 A). 
The crypts contain a number 
of short, often converging cell- 
filaments the end-cells of 
which become spermatia, but 
the spermatia-producing cells 
may also be situated at the 
Fig. 506. surface of the shoot (comp. 
Phyllophora Brodiei, from Lille Belt, east of Hesteskoen, June 1922, from Kyrın 1929, fis. 16 E) The 
frond with crenulated border. 4, procarp; a two-celled branch issues from 3 5 = er i 3 
the first cell of the carpogonial branch; a, the auxiliary cell, 1,2, c, the cells antheridia were met with in 
of the carpogonial branch. B, two procarps, that to the left without tricho- the months of March and May 
gyne. C, carpogonial branch isolated by pressure. D, protruding tricho- 5 Sy 
gyne, the base of which cannot be distinguished. 560 : 1. to November. 
The procarps are situated 
in the inner cortex. When fully developed they are composed of a tricellular carpo- 
gonial branch and a large supporting cell (Tragzelle KyLin) which becomes an 
