372 62. Gigart. 2.THALASSIOPHYT2E. PI. cell. apL 
Fucus gigartinus, Lin. Syst. Veg. 816; Turn. Hist. 28 ; Engl. Bot. 908 r 
not of FI. Dan. 
* Focus pistillajop, Gme.l. 156. 
Focus Oederi, Esper , 135. 
Ceramium gigartinum, Roth Cat. 3, 109. 
Gigartina pistillata, Lamour. Thai. 46. 
Gelidium gigartinus, Lyngbye Ilydr. Ban. 41. 
Sphairococcus gigartinus, Agardh Disp. 16. 
Sea-shore; perennial. 
Thallus aggregate ; forks spreading. 
2. Gigartinus coronopifolia. Swines-cr ess-leaf plum-weed* 
Thallus cartilaginous, flattish, compressed, much and 
irregularly branched ; twigs two-forked, spreading, alter- 
nate, cylindrical ; tubercles spherical, on the short hori- 
zontal two-rowed ciiise. 
Focus coronopi facie, Dille.n in Raii Syn. 45,23. 
Fucus ccronopifoiius, Lin. Tr. 3, 185; Turn. Hist, 122; Engl. Bot. 
1478. 
Fucus cartilagineus, Huds. FI. Angl. 586. 
Spheerococcus coronopifolius, Agardh Syn. 30, not the synonyms. 
Sea-shores; perennial; October. 
Thallus deep transparent red, flexuous ; lobes slightly 
veined and dilated, when barren palmate. 
b. Hypnea. Thallus compressed , branched ; tubercles 
immersed in the lanceolate compressed twigs. 
S. Gigartina cartilaginea. Gristlelike plum-weed . 
Thallus cartilaginous, flat or compressed, naked below, 
repeatedly pinnate above; segments horizontal, mostly al- 
ternate, linear; ultimate segments very short, blunt; fruit- 
bearing segments ovate, lanceolate, sharp-pointed. 
Fucus cartilagineus, Lin. Syst. Veg. 816; Turn. Hist. 124; Engl. Bot. 
1477. 
Fucus Capensis, Gmel. 157. 
Fucus versicolor, Gmel. 158. 
Sea-coast ; perennial. 
Thallus red, purple, greenish, brownish or tawny. 
4. Gigartina cornea. Hornlike plum-weed* 
Thallus cartilaginous, horny, compressed, irregularly 
branched; branches linear, narrowed at each end; pinnate 
or bipinnate; segments opposite, spreading, rather blunt. 
Fucus flavicans teretifolius ramulis pennatim enascentibus, Dillen in 
j Raii Syn. 50, 49. 
Fucus corneus, Huds. FI. Angl. 585; Turn. Hist. 257 ; Engl. Bot. 1970.. 
Fucus senicnus, Gmel. 149. 
Fucus spinosus, Gmel. 161. 
Fucus pumilus, Stackh. Ner. Brit. 16, 16? 
Sea-coasts; perennial; May to October. 
