it seems however that really lateral hairs may also sometimes occur. At all events 
two hairs may be found on one cell (fig. 18 G). Most of the hairs are early thrown 
off, leaving however a vestige in the outline of the cell, this being a little enlarged 
at the upper end. I have once seen a hair given off from a basal cell which had 
nol yet produced any filament. 
Most of the plants bear at the same time sporangia and both kinds of sexual 
organs, some plants, however, bear only sexual organs. The sporangia are sessile 
on the sides of the filaments or sometimes borne by the unicellular branchlets 
(fig. 18 A); they open by a split at the top (fig. 18 A, G). 
Fig. 18. 
Chantransia gynandra. A, plant with 3 branchlets, a cystocarp and sporangia. BD, upper end of filament 
with branchlets bearing antheridia. C, plant with two cystocarps and one sporangium. D, dwarfed plant 
with antheridia and one carpogonium; a spermatium is lying above. E, dwarfed plant (comp. text). Æ, two 
antheridia on a branchlet; a spermatium is situated immediately outside one of the antheridia. @, part of 
filament with a young cystocarp and two empty sporangia. H, plant with three carpogonia with epigynous 
antheridia, two young, the third in the fertilization stage. I and K. plants with young eyslocarps and epi- 
gynous antheridia. L, plant with carpogonium in fertilization stage. 630: 1, 
The carpogonia are situated on the sides of the filaments at various distances 
from the base; they are bottle-shaped, the trichogyne being of almost the same 
length as the ventral part. The antheridia are situated either on the carpogonia 
or on the ramuli; in the first case they are always solitary, in the latter there are 
D. K. D. Vidensk. Selsk. Skr., 7. Række, naturvidensk. og mathem, Afd. VII. 1. 12 
