AN ENUMERATION OF CULTIVATED FERNS. 125 
50. GYMNOGEAMMA, Desv. 
Vernation fasciculate, erect. Fronds pinnate, bipinnatifid, 
or multifid, rarely simple, smooth, villose, or farinose, from a 
Genus 50.— Portion of mature frond, upper side. No. 1. 
few inches to 2-3 feet high. Veins forked ; venules free. JZc- 
ccptacles medial, elongated. Sori linear, simple, or forked, often 
becoming confluent, naked. 
§1. Newrogramma. Fronds pinnate or hipinnate, villose. 
1. G. rufa, Desv.; Loive's Ferns, 1, t. 6 A. Hemonitis rufa, 
Sw. ; Sclik. Fil. tt. 17, 21. — Tropical America. 
2. G. tomentosa, Desv. ; Lowe's Ferns, 1 , t. 6 B ; Hook. Fil. 
Exot. t. 13. Hemionitis tomentosa, Eadd. Fil. Bras. 
1. 19. — Tropical America. 
§ 2. Trismeria. Fronds pinnate; pinnae li-trifoliate ; seg- 
ments linear, covered with white or yellow farina. 
3. G. trifoliata, Desv. ; Hook. Gard. Ferns, t. 4 ; Lowe's New 
Ferns, t. 31. Acrostichum trifoliatum, Linn.; (Blum. 
Fil. t. 144 ;) Sclik. Fil. tt. 3 et 22. Trismeria argentea 
et aurea, Fee, Gen. Fil. t. 14 A. — West Indies and 
Tropical America. 
§ 3. Ceropteris. Fronds li-tripinnatifid or multifid, covered 
with waxy farina on the under side. 
4. G. Calomelanos, Kaulf; Hook. Gen. Fil. t. 37; Hook. Gard. 
Ferns, t. 50. Acrostichum Calomelanos, Linn.; Blum. 
Fil, t. 40 ; Sclik. Fil. t. 5; Lang, et Fisch. Ic. Fil. t. 3. — 
Tropical America. 
5. G. Tartarea, Desv. Acrostichum Tartareum, Sw. — Tropical 
America. 
