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ALLAN HANCOCK PACIFIC EXPEDITIONS 



VOL. 4 



PLATE 42 



Fig. 52. Plumularia reversa, new species 



a. Natural size. 



b. Portion of stem with hydrocladia. 



Fig. 53. Plumularia sinuosa Fraser 



Portion of stem and hydrocladium with gonangium (x40). 



Fig. 54. Plumularia venusta, new species 



a. Natural size. 



b. Portion of stem with hydrocladia. 



