TRIBE II. CARYOPHYLLACEA. 409 



generally adopted, may better be retained. Moreover, Oken's name 

 was introduced without any reference to the previously formed genera 

 of Lamarck. 



Arrangement of the Species. 



I. Glomerate. 

 *1. G. palifera. 



II. Ezplanate from a central pedicel. 



*2. G. peltata. 4. G. crater. 



*3. G. patula. *5. G. cinerascens. 



III. Foliaceous ivith tlie folia clustered. 



*6. G. frondens. *7. G. brassica. 



I. Gemmiporce glomeratce. 



1. GEMMIPORA PALIFERA. (Lamarck.} Elainville. 



G. glomerata, scepe subglobosa et hbata ; polypis flavescentibus, tenta- 

 culis brevissimis. Corattum caliculis valde confertis, cylindricis, 1-3'" 

 altis, et !"' crassis, apicepaulo minoribus, margine crassis. 



Glomerate, often subglobose and lobed ; polyps yellowish, tentacles 

 very short. Corallum with the calicles much crowded, cylindrical, 

 1 to 3 lines high, and l lines in diameter, and a little smaller at 

 summit; margin thick and stout. 



Plate 29, fig. 2, corallum; 2 a, transverse section, enlarged; 2 b, 

 animal, enlarged. 



The Austral Seas. Lamarck. Feejee Islands. Exp. Exp. 



Forms irregularly rounded masses, sometimes subdivided or lobed, 

 and crowdedly covered with stout cylindrical calicles. One specimen 

 in the Expedition collections is six inches in diameter and four thick. 

 The cells contain about thirty even lamellse, and are a line deep, with 

 the bottom small and flat. 



Astrcea palifera, Lamk., ii. 409, No. 14. Gemmipora palifera, Blainv., Man. d'Act., 

 , Lamouroux, Encyc., 130. 387. 



103 



