Download PDF

330 32.Bomch. 2.THALASS10'PHYTM, PL cell. aph.
VII. 32. BORRICHIUS. Borrichius.
Thallus rose-red. threadshape; Ira'nches forked, verti-
cillate ; joints cylindrical, composed of a single tube ; knots
pellucid ; ihecce ovate, naked, on the side of the twigs.
Gelatinous, marine.
Borrichius gelatinosus. Gelatinous borrichius.
Thallus cylindrical, much branched, very gelatinous,
very pale pink; ^?07/c/26'i^ alternate, very numerous, cylindrical,
blunt, recurved.
Rivularia verticillata, With. Bot. Arr. 4, 127 ;
Sea-coasts ;
July and August.
Engl. Bot. 2466.
VIII. 33. BATRACHOSPERMUM. B. de St.Vincent.
Knot weed.
Thallus green or brown, threadlike, branched ; tivigs
forked, in whirls; ;om/5 cylindrical, composed of a single
tube ; knots pellucid ; iheccc ovate, naked, on the side of
the twigs.— Very gelatinous, beadlike, appearing like a
dotted picture when dry, in marshes.
1. Bairachospermum moniliforme. Necklace knot-weed.
Thallus much branched, forming tufts, attenuated
branches alternate, spreading; twigs in whirls, forked, very
close ; joints ovate, necklacelike.
Conferva fontana nodosa, spermatis ranarum instar lubrica, major et
fusca, Dillen in Rail Syn. 62, 26.
Ciiara batrachosperma, Weiss Crypt. Gott. 33, 1.
Chara gelatinosa, Roth Cat. 125.
Conferva gelatinosa, Lin. Syst. Nat. 2, 720; mUu). Conf. 32: Engl.
Bot. 689.
Batrachosperma ludibunda, B.de S. Vine. An>i. Mus. 12,310,
Batrachofperminn moniliforme. Roth Gerjn. 3,480.
In clear rivulets and springs, on pebbles.
Thallus 1 to 3 inches long; lower joints very long, upper
shorter.
/3. purpurascens. Branches more pointed ; thallus pur-
plish blue.
y. detersum. Twigs wanting ; thallus appearing like
naked, knotted threads.
Conferva fontana nodosa, lubrica; filamentis tenuissimis nigris, Dillen
Muse. 39.
Conferva atra, Huds. Angl. 597 ; Dillm. Conf. 11 ; Engl. Bot. 690.
Ceramium tiodnlosum, Agardh Dec. 23.
Batracliospermum moniliforme detersum, Agardh Syn. 122.