376 



40 



great number of my specimen 

 to decide to which form thev 



Fig. 19. Caiileipa ciipressoides 



(Vahl) Ag. var flabellata n. var. 



In deep water (about 25 m.) off 



America Hill (St. Jan). (About 1 : 1.) 



grands rochers surplombants, 

 profonde est toujours calme, 

 this it is evident that the pi 



s e. g. from Christianssteds Lagoon, it is impossible 



belong. 



Finally, we meet with Caulerpa cupressoides in 

 deeper water in the open sea. The forms we find 

 here are rather large. They are dichotomously 

 branched and the branches, which have the edge 

 turned towards the midrib, are all placed in nearly 

 the same plane, in such a way that the erect shoots 

 have more or less an obviously flabellate form. 

 The ramuli are always distichous and variable 

 as to the length, from a little longer than the mid- 

 rib to 5—6 times as long. The plant is of a fresh- 

 green colour. 



Two forms can be distinguished. One of these 

 is rather richly dichotomously branched in such a 

 way that the erect shoots are more or less flabellate. 

 Ramuli are rather short, 1 — 3 times as long as the 

 midrib. This form which so far I can see has not 

 been earlier described, I propose to call var. flabellata 

 (Fig. 18 and 19). The other form is likewise clearly 

 dichotomously but less ramified. The ramuli are 

 long, cylindrical and bent somewhat upward. It has a 

 great resemblance to the figure 9, pi. XXVII in Mme. 

 Weber's Monograph, a form she has called f. elegans 

 and which name I will also use here (Fig. 20). These 

 two varieties though they seem very different are 

 nevertheless so nearly related that one can find both 

 forms on the same rhizome (see Fig. 21). 



Mile. Vickers has found var. elegans at the 

 Barbadoes in shallow water. Several specimens of 

 this var. occur in Mme. Weber's Herbarium. They 

 agree very well with mine, though generally some- 

 what more ramified and the ramuli also a little 

 shorter. As to the locality, at Hastings, from where 

 the most beautiful specimens originate, Mile. Vickers 

 gives a rather complete description in the introduc- 

 tion to her paper. She writes: "Au bout de la 

 longue plage d'Hastings se trouve le coin délicieux 

 qui se nomme Worthing. C'est un cap formé de 

 sous lesquels s'étend une petite baie où l'eau peu 

 Cette baie est encore protégée par un récif". From 



ant has been growing in rather shallow water and 



