PLATE X. 



A. 



eEK. 16 — DRYOSTACHYUM, J. Sm. [Synopsis p. xiii.] 

 Tig. 1 . Fragment of sterile frond of D. spiehueits, J. Sm. (n. u.) 



2. Portion of fertile pinna of the Bame (n. s.) 



3. Fragment of tlie fertile pinna enlarged. 



4. Spore-case. 

 6. Spores. 



B. 



G-EN. 17.— JBNKINSIA, Sooi:. [Synopsis p. xxiii.] 



Via. 1. Fragment of sterile frond of J. iiwdtilata. Hook. (n. 8.) 



2. Pinna of fertile frond of the same (n. s.) 



3. Fragment of fertile pinna enlarged, 

 4 Spore-caae, 



6. Spores. 



