37 



;373 



most probably il is however in the same locality, judging from a specimen which 



Dr. Marshall A. Howe has most kindly sent me. It was collected in the Bermuda 



Islands and as to the locality 



he writes: "In a tide-pool". On 



the other hand I have some 



specimens from Danish West 



India which are intermediate 



between var. mamillosa and 



var. ericifolia and which are 



found in these more-exposed 



localities. 



If v^'e now go to the more 

 sheltered localities and first 

 consider those, where the water 

 is still clear, we find here spe- 

 cimens whose erect shoots are 

 about 6 — 12 cms. high, more or 

 less richly ramified and with 

 rather spread branches (see 

 Fig. 15 and 16). These bear 

 commonly 3 rows of ramuli, 

 more seldom a higher number; 

 often especially in the upper 

 part of the branches however 

 we find only two rows. The 

 ramuli are ovate to oval- 

 cylindrical or quite cylindrical 

 with a short spine at the apex; 

 they are commonly about twice 

 as long as the breadth of the 

 midrib and in the distichous 

 branches often opposite. The 

 forms we meet with here are 

 of the var. typica and com- 

 monly agree with the figures 

 2 and 3 in Plate XXVII in Mme. 

 Weber's Monograph and with 

 Reinke's figure 42, 1. c. If we 

 pass further into the lagoon 

 where the water is often muddy 

 and the light therefore less, the 

 forms become gradually larger Fig. Hi. C. cuprexsoides (Valili Ag. var. typica. 



In shallow water. The lagoon of Salt River (St. Croi.x). (About 1:1. 



