Portion of mature Frond— upper side. 



GYMNOGRAMMA CALOMELANOS. Kaulfuss. Moore. 



PLATE II. 



Gymnogramne Calomelanos, 

 Ceropteris ccdomeloena, 

 Acrostichum calomelanos, 



Acrostichum ebenum, 

 Acrostichum album, 



KuNZE. Spreistgel. 

 Link. Fee. 



LlNlSr^TJS. SCHKTJHK. 



Langsdokf and Pischeh. 



E.ADDI. WiLLDENOW. 



SwAETz. Humboldt. 



LlNNiEUS. 

 SCHKUHK. 



Gymnogramma — Naked writing. Calomelanos — Beautiful black. 



This graceful and fine species, known as one of the Silver 

 Fernsj from the under side of the fronds being covered with 

 a farinose powder, is one of the most ornamental of the stove 

 species. It is a native of the West Indies, Jamaica, St. 

 Domingo, Guiana, Brazil, Mexico, the Island of St. Catharine, 

 the Caribbee Islands, etc. — an evergreen Fern. 



It is a much larger Fern than Gymnogramma chrysophylla, 

 the fronds on my specimen exceeding three feet in length, the 

 lower fourteen inches being destitute of pinnse. The midrib, 

 stipes, and rachis, are an ebony black, terminal and rising from 

 an upright fasciculate rhizoma; the first three inches above 

 the rhizoma, being covered with prominent hair, or thin scales, 

 of a brown colour. The young fronds are of a pale green 

 colour. The upper side of the frond is of a dull green colour. 



