294 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 12 



Ghondria callfornica (Collins) Kylin 



Plants to 3.0-3.5 cm tall, dull red, soft and tufted, with numerous 

 axes from near the base, the axes alternately 1-3 times branched; branch- 

 lets tapering somewhat to the base, the tips tapering acutely, with a dis- 

 tinct apical cell ; width to 1 mm or a little more below, to 0.5 mm in the 

 branchlets; branchlets frequently arcuate or recurved, and sometimes 

 with one to several fibrous holdfasts either well developed or in young 

 stages ; reproductive stages not seen. 



Collins in Phyc. Bor.-Amer. no. 636 as Chondria tenuissima forma 

 calif ornica; Kylin 1941, p. 41. 



Mexico: Baja California, on corallines at South Bay, I. Cerros, no. 

 34-628, 10 Mar. 1934. Costa Rica : dredged attached to shells at Pto. 

 Culebra, no. 34-524, 24 Feb. 1934. 



Chondria flexicaulis n. sp.^^"^ 

 Plate 100, Figs. 1-3 



Plants to 20 cm tall or more, soft, rose red, alternately branched, the 

 main axes 1.0-1.5 mm diam., chiefly produced near the base of the plant, 

 of about equal length, with relatively few secondary axes, the tapered 

 ends long extended, naked ; short branchlets scattered alternately at inter- 

 vals of about a centimeter, occasionally 2-4 together, 3-10 mm long, 0.5- 

 1.0 mm diam., sharply contracted at the base or commonly pedicellate, 

 spindle shaped, with the lower end slightly swollen ; tetrasporangia in the 

 ultimate pedicellate branchlets, which at first are elongate conical with 

 the sporangia near the base, but with age become more club shaped with 

 the lower part empty and the ripe sporangia near the tip ; spermatangia 

 forming obovate pedicellate disks 0.5-1.0 mm diam., especially near the 

 base of the ultimate branchlets; cystocarps on distinct plants (dioecious), 

 4-10 chiefly alternately placed near the bases of the branchlets, commonly 

 with one or two secondaiy branchlets arising near the base of the first. 



These plants somewhat resemble C. nidifica Harvey (1858, p. 125, pi. 

 50) and Phyc. Bor.-Amer. no. 1646. They are, however, throughout soft 

 and slender, and the tetrasporangial branchlets do not form the clusters 

 figured by Harvey. It is possible that they are only a deep-water form of 

 that species. 



187 Chondria flexicaulis n. sp. — Plantae ad 20 cm altitudine, alterne ramosae, 

 axibus secundariis paucis, cacuminibus multum extensis, flexuosis nudisque; ramu- 

 lis brevibus intervallis 1 cm aut simul, 3-10 mm longitudine, 0.5-1.0 mm diam., 

 fusiformibus ; tetrasporangiis intra ramos clavatos pedicellatosque, sporangiis ad 

 cacumen ; spermatangiis in discis obovatis, pedicellatis, ad bases ramulorum ulti- 

 morum orientibus; pericarpis pedicellatis, ore lato vasiformibus, magna ex parte 

 ad bases ramulorum orientibus. Planta typica in loco dicto I. Santa Cruz, Ecuador, 

 legit W. R. Taylor no. 34-309, 20 Jan. 1934. 



