ELISHA MITCHELL SCIENTIFIC SOCIETY. 123 



lieterophyllus, Schreb. July. 



pan iflonis, Pui'.sh. July — August. 



perfoliatlis, L. July — September. 



fluitans, Roth. June — Auijust. 

 Naias flcxilis, Rotsk, 



ALISMACE/^. (WATER-PLANTAIN FAMILY.) 



Alisma plautago, L. (Water-Plaintain.) July— August. 



Trig^locliin triandrnni, Michx. (Arrow-grass.) August — September. 



Echiiiodorus radicaiis, EiigTlmann. {Alisma radicans, Nutt ) 



July — September. 



♦Sajfiltaria variabilis, Eiig:. (Arrow-leaf.) July— September. 



falcata, Pursh. June — September. 



pusilla, Nutt. 



heterophylla, Pur.sli. 



liatans, Mlchx. June — September. 



simplex, Nutt. May — October. 



^ramiiiea, MicllX.f Ger. McCarthy. 



HYROCLIARIDACE^. (FROG'S-RIT FAMILY.) 



Liuiiiobiuni Spoug^ia, Rich. (Frogs-bit.) July — August. 



BURMANNIACE.^. (BURMANNIA FAMILY.) 



Burmannia biflora, L. October. Flowers pmkish. 



eapitata, Cluip. ( Tripterella capitata, Michx.) 



October. Flowers white, 



ORCHIDACE/E. (ORCHIS FAMILY.) 



Mieroslylis orphioglossoides, Nutt. (Adders-Mouth.) 



July — August. Flowers greenish. 

 tBletia apliylla, Nutt. Dr. McRee. Rocky Point. 



July — August. Flowers brownish, striped with purple. 

 Pontllieva^laudulosa, R. Br. {Opkryspubera, Michx.) 



September — October. Flowers greenish. 

 Corallorhiza odontoiiiiza, Nutt. (Coral-root.) 



{Cvfibidiuni co7-allorhizoa.'\ February — March. 



*S. variabilis variously named S. sagittifolia. hastata, pubescens, etc. 

 fNot given in Curtis' Catalogue. 



:}: A specimen found by Mr. Charlie Bradley in his boathouse at Greenville 

 Sound, on Hewlett's Creek, 1886. 



