( . 44 ) 



SERIES II. 



CRYPTOGAMOUS or FLOWERLESS PLANTS. 



Class III. ACROGENS. 



Order 101. EOTISETACEiE. 



EQTTISETTJM, L. Horsetail. 



1. arvense, L. 



2. sylvaticum, L. 



3. limosum, L. 



4. hyemale, L. Scouring Rush. 



5. variegatum, Schleich. Conway, Jesup. 



6. scirpoides, Michx. Plainfield, Porter. 



Order 102. FILICES. 



1. POLYPODITJM, L. 

 vulgare, L. Polypody. 



2. PELL-3EA, Link. 



1. gracilis, Hook. Mt. Toby, Tucker man. 



2. atropurpurea, Link. Mt. Toby, Hitchcock. 



3. PTERIS, L. • 

 aquilina, L. Brake. 



4. ADIANTUM, L. Maidenhair. 

 pedatum, L. 



5. WOODWAEDIA, Smith. 



1. Virginica, Smith. Belchertown, Jesup. 



2. angustifolia, Smith. Hadley, Jesup. Deerfield, Hitchcock. 



6. CAMPTOSORUS, Link. 

 rhizophyllus, Link. "Walking-Leaf. Mt, Toby, &c, Hitchcock, 



7. ASPLENITJM, L. Spleenwort. 



1. Trichomanes, L. 



2. ebeneum, Ait. 



3. Ruta-muraria, L. Wall-rue.- Mt. Toby, Hitchcock. 



4. angustifolium, Michx. Mt. Toby, Hitchcock. 



5. thelypteroides, Michx. Amherst, &c. 



6. Filix-foemina, Bemh. 



8. PHEGOPTERIS, Fee. 



1. polypodioides, F6e. 



2. hexagonoptera, F6e. 



3. Dryopteris, Fee. 



