Howe: Phycological studies S7 



or many of the later uliorls, irrc^^ularly dilated so as to form a 

 kind of cortex much as in N. stipitata. In A^. viucosa we have 

 never seen a primary branch terminating in a solitary hair and we 

 have never seen the primary branches inflated in such a way as to 

 simulate a corticating layer. The material of A^. anmilata figured 

 by Cramer in connection with the characters mentioned came from 

 Bermuda, and that figured by Solms was from Mauritius. In 

 specimens of X. annulata from Bermuda we are able to confirm 

 the observations of Cramer and of Solms, so far as concerns the 

 stages studied and figured by them, but in a juvenile condition, 

 showing only the first two whorls of branches, we find the branches 

 of the second order in pairs. 



Neomcris mucosa is preserved less well by adding formaldehyde 

 to seawater than is the case with A^. aiinulata and N. Cokeri. After 

 a few weeks in such a solution, the plants can scarcely be handled 

 without breaking across the main axis. 



5. Neomeris annulata Dickie, Jour. Linn. Soc. Bot. 14: 198. 



1874. — Solms, Ann. Jard. Bot. I^uitenzorg 11 : 62-71. //. 



8.f. 1,3,4, 7> '^' ^-^ ^3> ^7- '^93- — Borgesen, Bot. Tidsskr. 



28 : 272. /. /, 2. 1908. 



? Corallina vermicida Nelson & Duncan, Trans. Linn. Soc. 

 Bot. II. I : 200,201. //. 26./. 14-17. 1876. 



Neofneris Kelleri Cramer, Neue Denkschr. Schweiz. Naturf. 



Ges. 30: — (3-10. 39). //. /; //. 2. f. 1-12; pi. J. f. J, 2. 



1887 ; 32 : — (9-19). //. /./. 1-12 ; pi. 2.f. 1-6 ; pi. 4./. ij- 



24. 1890. — Vickers, Phyc. Barbad. i : //. 46. 1908. 



Plants scattered or more often densely gregarious, subcylin- 

 drical or somewhat fusiform-clavate, 5-25 mm. long, 1-2 mm. tiiick, 

 light or yellowish green in upper half or third, becoming chalky- 

 white below, subacute, in dried condition often appearing rather 

 gradually tapering : successive whorls of primary branches mostly 

 60-175 in number, 1 15-2 50, « apart in median regions ; number of 

 branches in a whorl 20-56 : hairs all of one form, soon deciduous, 

 persisting in a small apical tuft : ends of branches of the second 

 order forming a cortex with hexagonal facets in transverse rows, 

 each pair of corticating branches lying in a radio-vertical or some- 

 what oblique plane, there being consequently twice as many trans- 

 verse rows in the cortex as there are primary whorls, the number 

 of facets in each row equaling the number of members in the 

 primary whorl, the cortex persisting in the upper half or three 



