300 PROF. OLIVER ON NEW PLANTS FROM RORAIMA. 



Plate LIII. 



Figs. 1,2. Gymnogramme (§ Pterozonium) cyclophylla, Baker, sp. n. 1, plant; 2, portion of frond, 

 enlarged. 



Plate LIV. 



Figs. 1-5. Gymnogramme (§ Pterozonium) elaphoglossoides, Baker, sp. n. 1, upper, 2, lower surface of 

 frond; 3, palea; 4, portion of frond, showing venation and position of sori; 5, rootstock. 

 Figs. 3 and 4 enlarged. 



Plate LV. 



Figs. 1-5. Enter osora CampbeUii, Baker, gen. nov. 1, plant ; 2, palea ; 3, portion of frond, showing 

 venation and sori ; 4, horizontal section of a frond ; 5, portion of same, much enlarged. 



Plate LVI. 



Figs. 1-7. (A.) Selaginella (§ Stachygynandrum) vernicosa, Baker, sp. n. 1, plant; 2, fertile branch ; 



3, front view of portion of stem, and 4, back view of same ; 5, stipule (or smaller leaf) ; 6, bract; 



7, capsule. 

 Fig. 8. (B.) Selaginella (§ Stachygynandrum) vernicosa, var. oligoclada. 

 Figs. 9-14. (C.) Selaginella (§ Stachygynandrum) roraimensis, Baker, sp. n. 9, plant ; 10, fertile 



branch; 11, back of stem; 12, leaf ; 13, stipule ; 14, bract with capsule. 

 Figs. 1, 8, and 9 of natural size, all the othei's enlarged. 



