. Transactions and proceedings of the New Zealand Institute . 2Li?^^2?ei. //OMfOS/m B/LUPO/E/rl,Mo7zf. TRAN^!!. J:AM-o-mi?eZ. ^OJ?MOS/fiA B/lUmm,Mm^, MoLLET.—On the Structure of Hormosira billardieri. 321 the proximal end of the node. At the distal end the central part of thetissue conies to an abrupt termination, leaving the surrounding mass onlyto pass on into the internode, where the parallel cells are comparatively few,being replaced by those of irregular shape. Conceptades.—The conceptacles, containing the sexual organs, are scat-tered over the surface of th
. Transactions and proceedings of the New Zealand Institute . 2Li?^^2?ei. //OMfOS/m B/LUPO/E/rl,Mo7zf. TRAN^!!. J:AM-o-mi?eZ. ^OJ?MOS/fiA B/lUmm,Mm^, MoLLET.—On the Structure of Hormosira billardieri. 321 the proximal end of the node. At the distal end the central part of thetissue conies to an abrupt termination, leaving the surrounding mass onlyto pass on into the internode, where the parallel cells are comparatively few,being replaced by those of irregular shape. Conceptades.—The conceptacles, containing the sexual organs, are scat-tered over the surface of the internode, or, rather, in its outer tissues. Theconceptacles are flask-shaped, and about 03 inch in diameter. The tissuelining them is of two distinct kinds ; that of the mouth and about one-sixthof the depth of the cavity resembles, and is apparently a contmuation of,the limiting tissue (PL XIII., fig. 4), but the remainder consists of corticaltissue. These facts would lead to the supposition that the origin of theseconceptacles is the same as that of those in Fucus serratus ;* but on thispoint I am not prepared to give a definit
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