I ii
•w .H U . ia.«t litk.. S .e i;v e .B c aK a ,m fcHeeve.irT.T
P l a t e CLXXIX.
CALLITHAMNION TLRNERI, Jg.
G e n . C h a e . Frond rosy, or brow n ish -red , filamentous ; stem e ith e r opake a n d
cellular, or tr a n s lu c e n t a n d jom te d , b ra n ch es jo in te d , on e -tu b ed , mostly
p in n a te (rarely d ichotomous or irreg u lar) ; dissepiments hyaline. F m it
of two k in d s on d is tin c t p la n ts ; 1 , e x te rn a l tetraspores, s c a tte red along
th e u ltim a te b ran c lile ts, or b o rn e o n little pedicels ; 3, ro u n d ish or
lo b ed , b e rry -lik e receptacles { fa v e lla ) sea ted o n th e m a in b ran ch es,
an d c o n ta in in g n um e ro u s a n g u la r spores. C a l l i t h a m n i o n {Lgngb.),
from (toXos, beautiful, a n d Sagviov, a little shrub.
C allithamnion Turneri ; filaments r is in g from c re ep in g fibres, simple or
rep e ated ly b ra n ch ed , once or twice p in n a te d w ith opposite, sp re ad in g
simple r am u li; a rticu la tio n s of th e m a in filaments 5 - 1 0 tim e s lo n g e r
th a n b ro a d ; te tra sp o re s c lu stered , subracemose or corymbose, favellæ
in v o lu c ra ted , stalk ed .
Callithamnion Turneri, Ag. Syst. Alg. vol. ii. p. 100. Harv. in Hook. Br.
FI. vol. ii. p. 839. Wyatt, Alg. Banm. no. 183. Harv. in Mack. FI. Hih.
part 3. p. 217. Harv. Man. p. 114. J. Ag. Alg. Medit. p. 70. Fndl.
3rd Suppl. p. 34. Kiitz. Phyc. Gen. p. 373.
Callithamnion repens, Lyngh. Hyd. Ban. p. 128. t. 40. Ag. Spec. Alg.
vol. ii. p. 184. Harv. in Hook. Br. FI. vol. ii. p. 348. Harv. in Mack. FI.
i/*5. part 3. p. 218. Harv. Man. p . 116. Kiitz. Phyc. Gen. p. 31%.
Callithamnion YaivXXc,Ag. Sp.Alg. vol.ii. p. 168? Kiitz. Phyc. Gen. p. 372.
Ceeamium Turneri, Both. Cat. vol. iii. p. 128. t. 5. Ag. Syst. p. 142. Grev.
Crypt, t. 335.
Ceramium repens, Ag. Syn. p. 63. Ag. Syst. p. 131.
CoNFEEVA Turneri, Billw. t. 100. F. Bot. t. 2339 {not. 1 .1637).
CoNFBKVA repens, Billw. 1.18. Both. Cat. vol. iii. p. 221. E. Bot. 1 .1608.
FI. Ban. t. 1665. ’
Conferva tenella, Billw. Syn. p. 72. t. P.
H a b . P a ra s itic a l o n o th e r Algæ, be tw een tid e m a rk s. A n n u a l. Summ er.
N o t uncommon.
Geo g e . D is t r . Atlantic shores of Europe and North America. Mediten’anean
Sea.
D esc r . Filaments rising from numerous prostrate fibres which creep, by means
of small, discoid roots, over the surface of other plants, densely tufted, one
to two inches high, capillary, simple or repeatedly branched; the branches
vei-y generally opposite, sometimes alternate, spreading, pinnated or hi-
pinnated with simple, slender, elongated, patent, opposite, or rarely alternate
ramuli. Articulations of the main stem from five to ten times longer
than broad; those of the ramuli 4-5 times; all with a narrow endochrome,
bordered by a .wide hyaline coat. Dissepiments broad. Tetraspores globose,
ilï'i