392 76. Mackaia. 2.THALA8SIOPHYTiE. PL cell. aph. 
1. Mackaia abrotanifiolia. Southern-wood mackay . 
Phallus threadlike, compressed, bipinnate*; lobes alter- 
nately forked, threadlike, spreading, edge not cut; vesicles 
innate; apothecia terminal, many cleft. 
Fucus abrotanifolius, Lin. S. P. 1629; Turn. Hist. 252; Engl. Bot. 
2130. 
Sea-shore; perennial; winter. 
Phallus 12 to 18 inches long; rough at the base. 
2. Mackaia discors. Discordant mackay. 
Phallus round, branched ; branches alternately pin- 
nate; lower branches winged, serrated; upper branches 
linear ; apothecia terminal, oblong. 
Fucus discors, Lin. Syst. Nat. 2,717; 'Turn. Hist. 252; Engl. Bot. 2131. 
Sea-shore ; perennial ; summer. 
Phalli many, crowded, rough. — According to Mrs. Grif- 
fiths is the young state of the preceding species. 
3. Mackaia barbata. Bearded mackay. 
Phallus round, very much branched; branches alternate, 
threadlike'; apothecia oblong, acute, terminal. 
Fucus barbatus, IVuodw. Tr. Lin. Soc. 3,128; Turn. Hist. 250 ; Engl. 
Bot. 2170. 
Fucus foeniculaceus, Gmel. S6. 
Sea-shores; perennial; summer. 
/3„ granulata. Apothecia linear, tubercular. 
Fucus granulatus, Woodw. Tr. Lin. Soc. 3, 131. 
4. Mackaia fibrosa. Fibrous mackay . 
Phallus compressed and woody at the base ; branches 
2-rowed, long, variously divided ; upper branches with 
bristlelike twigs, low T er branches naked ; vesicles roundish, 
innate; apothecia cylindrical. 
Fucus radicibus arborum fibrosis similis, Raii Syn. 49,45. 
Fucus fibrosus, Huds. FI. Angl. 575 ; Eng. Bot. 1969 ; Turn. Hist . 209. 
Fucus setaceus, Huds. FI. Angl. 575. 
Fucus barbatus, Gmelin , 90. 
Sea-shores; perennial; Feb. and August. 
Phallus 1 to 3 feet high. 
5. Mackaia mucronata . Stiff-pointed mackay. 
Phallus round, vrarty, very much branched ; branches 
threadlike, spinous; young branches linear, flat, not cut, 
mid-ribbed ; tip stiff pointed ; apothecia cylindrical. 
