PL cell. aph. 2. THAL ASSIOPHYTiE. 29. Callith. 325 
9. Callithamnion Turneri . Turner's pretty-iveed . 
Thallus pinnated, rose-colour; lobes opposite, simple, 
or rather pinnate; joints 3 times as long as broad. 
Conferva Turneri, Dillw. Conf. 100. 
Ceramium Turneri, Roth Cat. 3, 128. 
Sea-shore, on sea-plants. 
Thallus closely tufted, an inch high, upright, linear, 
lanceolate. 
10. Callithamnion repens . Creeping pretty -weed* 
Thallus creeping, closely entangled, branched, minute, 
light rose-red; branches and twigs mostly pointing one 
way ; knots slightly contracted ; joints 3 times longer than 
broad. 
Conferva repens, Dillw. Conf. 13; Engl. Bot. 1608. 
Ceramium repens, Agardli Syn. 63. 
Callithamnion repens, Lyngbye Hydr. Dan. 128. 
Sea-shore on shells and marine plants; Autumn. 
Tufts rather stiff, brownish red; stem creeping; branches 
upright, mostly divided ; twigs spreading. 
tenellum. Thallus light rose- red, flaccid, very slender; 
branches simple. 
Conferva tenellu, Dillw. Syn. 72. 
Callithamnion repens tenellum, Lyngbye Hydr. Dan. 128. 
11. Callithamnion plumosum.. Feather pretty-weed* 
Thallus creeping, branched, minute, deep rose-colour; 
branches upright, below rather naked, above pinnated; 
segments opposite, close ; joints twice as long as broad. 
Conferva Plurna, Dillw. Syn. 72. 
Parasitic on larger marine plants. 
Thecce globose, mostly terminal. 
12. Callithamnion Davie sii. Davies' s pretty-weed *. 
Thallus branched, tufted, upright, very minute, free, 
rose-red; branches and twigs alternate, scattered, pointed; 
joints 3 times as long as broad. 
Conferva Daviesii, Dillw. Syn. 73; Engl. Bot. 2329. 
Callithamnion Daviesii, Lyngbye Hydr. Dan. 129. 
Sea; on marine plants. 
Thallus rarely more than a quarter of an inch long, not 
entangled ; thecce placed in rows along the upper side of 
the twigs. 
