99 
seen a sporangial stalk bearing more than one sporangium, and a renewal of an 
emptied sporangium within the sporangial-wall from the stalk-cell has not been 
observed, but a new sporangium may sometimes be developed beside an emplied. 
Colourless hairs are always present; they are terminal or lateral, in the latter 
case, however, certainly always originally terminal. 
Localities. Bm: Gyldenløves Flak, QR, 7,5 meters, on Polysiphonia violacea, July. — Bh: SQ, 
S. of Broens Rey, 8,5 meters, on Polysiphonia elongata, August. 
5. Chantransia moniliformis sp. noy. 
Thallus minutus cæspitulosus, 50—150  altus vel parum ultra (sine pilis). Cel- 
lula basalis singula subglobosa, fila 2—3 (vel plura?) erecta vel decumbentia et 
adscendentia, a basi ramosa, e cellulis plus minus inflatis constituta, emittens. Cel- 
lulæ diametro æquilongæ ad duplo longiores, plerumque 
fere sesquilongæ, subglobosz aut doliiformes vel in parte A NEN 
superiori incrassate, 7—10 , late, 7—14 longæ. Chro- c KY 
matophorum stelliforme, pyrenoide centrali instructum, Q\Sa | 
A 0.8 : 5 2 5 CR À 
in parte superiori cellule situm. Fila ramique, præci- I | 
a 
pue in statu juvenili, sæpe piligeri, pilis initio termi- | | | 
nalibus, dein evolutione sympodiali (pseudo-)lateralibus. ff \ 
Sporangia monospora sessilia, rarius pedicellata, late- | 
ralia, secundata vel opposita, ovata, 13,5—15 » longa, 
7 a lata, post evacuationem- sæpe sporangio novo, 
e cellula subjacenti orta, repleta. Organa sexualia 
= Ki Alea 
ignota. Josh Al CE 
This small species is easily distinguishable from NLS 
the other species of this group by its short, more or Sp 
C 
less swollen cells, which in juvenile plants approach 
to the globular form, while in older plants they are cher nie ee: Sant hs 
almost barrel-shaped. The basal cell which is fixed to with hairs. 4 from Helsingør, Band C 
the host plant by a thin layer of cementing substance ne 
is scarcely different from the other cells in form. The displacement of the origi- 
nally terminal hairs is easily to be seen in the young plants (fig. 28 C); in older 
plants no hairs are to be found. In the plant represented in fig. 28 B the cell si- 
tuated beneath the upper terminal hair-cell had lengthened and become almost 
colourless, approaching thus to the character of a hair-cell; but this case appears 
to be very rare. The branches are mainly given off at the upper side of the de- 
cumbent or ascending principal filaments, and this holds good also of the sporangia 
which are often seriate on the upper side of the filaments. After the evacuation 
the sporangial wall is seen to be lamellate, but the acroscopic part of it is often 
dissolved (fig. 29 B). — On dried material I once saw a specimen with a blue-green 
colour; unfortunately I have not examined the species in the living state. 
13* 
