. Dansk botanisk arkiv. Plants; Plants -- Denmark. F. Børgesen: Rhodophyceæ of the Danish W. Indies. 409 carps occur scattered, solitary or a few together upon the same joint. Davis has 1. c, described their development. This plant was found with tetraspores in the months Janu- ary to March and with antheridia and cystocarps once in Feb- ruary. It occurred in shallow water both in sheltered and in more exposed localities and in deep water down to a depth of about 20 fathoms. In deep water and in sheltered localities, for in- stance in lagoons, the plant is slender and the joints rather long, i
. Dansk botanisk arkiv. Plants; Plants -- Denmark. F. Børgesen: Rhodophyceæ of the Danish W. Indies. 409 carps occur scattered, solitary or a few together upon the same joint. Davis has 1. c, described their development. This plant was found with tetraspores in the months Janu- ary to March and with antheridia and cystocarps once in Feb- ruary. It occurred in shallow water both in sheltered and in more exposed localities and in deep water down to a depth of about 20 fathoms. In deep water and in sheltered localities, for in- stance in lagoons, the plant is slender and the joints rather long, in more exposed places it is more robust with short joints. St. Croix: Christianssted's Lagoon, Christianssted's Harbour, off Frederikssted, Krause's Lagoon. St. Jan: Off America Hill, off Ramshead. Geogr. Distrib.: Warmer parts of the North-atlantic Euro- pean and American coasts, Me- diterranean o 0 Q 0 0 °i Fig. 393. Champia parvula (Ag.) Harv. A, part of the wall seen from above and B, transverse section of the wall of a male plant (350:1). 2. Champia salicornoides Harvey. Harvey, W. H., Nereis , p. 76, tab. XIX B. Agardh, J., Epicrisis, p. 305. This species bears a rather close resemblance to Champia parvula not only with regard to its outer habit, but also in its anatomy. Bigelow has pointed this out in his paper quoted above on p. 118. But Champia salicornoides is a much bigger plant and when examined more thoroughly, some anatomical differences also become apparent. The peripheral wall of the frond consists of a single layer of cells, seen from above rectangular—polygonal, about IV2 to 2 times as long as broad; in transverse section the cells are nearly square- shaped. The cells have a rather thick peripheral wall which swells greatly in water. The diaphragms between the joints of the thallus consists of a single layer of cells of irregular, polygonal. Please note that these images are extracted from scanned page images that may have been digitally enh
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