58 PLANTS OF BHODE ISLAND. 



BOTRYCHIUM, Swartz. Moonwort. 



1. Virginicum, Swartz. 



2. ternatum, Swartz, var. lunarioides, Milde. 



B. lunarioides. 

 var. obliquum, Milde. 



B. lunarioides, var. 

 var. dissectum, Milde. 



B. lunarioides, var. 



OPHIOGLOSSUM.L. Adder' s Tongue. 

 vulgare, L. Rare and local. 



Order 106. LYCOPODIACE^. 

 LYCOPODIUM, L. Club Moss. 



1. lucidulum, Michx. 



2. inundatum, L., var. Washington County. 



3. annotinum, L. Olney. 



4. dendroideum, Michx. Ground-Pine. 



5. clavatum, L. Lion's Paw. 



6. complanatum, L. Creeping .Jenny. 



SELAGINELLA, Beauv. 



1. rupestris, Spring. 



2. apus, Spring. 



ISOBTBS, L. QUILLWORT. 



1. lacustris, L. 



2. Tuckermani, Braun. E. Greenwich, Congdon. 



3. echinospora, Durieu. Davisville, Bennett. 



4. riparia, Engelm. Apponaug, Congdon. 



5. Engelmanni, Braun. Davisville; Newport, Dr. Farlow. 



Order 107. CHARACE^. 



CHARA, (L.) Ag. 



1. coronata, var. Schweinitzii. Newport, Dr. Farlow. 



2. vulgaris, L. 



3. fragilis, Desv. 



4. Hydropitys, A. Br., var. septentrionavis. Gorton's Pond. 



5. sejuncta, A. Br. Apponaug, Mr. E. Faxon. 



NITELLA, Ag. 



1. gracilis, Ag. 



2. intermedia, xVdst. Apponaug, Dr. Allen. 



3. tenuissima, Desv. (Kutz.) Dr. Allen. 



