196 FIELD COLUMBIAN MUSEUM BOTANY, VOL. i. 



SCIRPUS AMERICANUS Pers. Scirpus pungens Vahl. 



SCIRPUS LACUSTRIS Linn. 



SCIRPUS SYLVATICUS Linn. 



SCIRPUS ATROVIRENS Muhl. 



SCIRPUS POLYPHYLLUS Vahl. 



SCIRPUS LINEATUS Michx. Eriophorum lineatum (Michx.) Benth & Hook, 



SCIRPUS CYPERINUS (Linn.) Kunth. Eriophorum cyperinum Linn. 



ERIOPHORUM VIRGINICUM Linn. 



RYNCHOSPORA GLOMERATA (Linn.) Vahl. 



CAREX FOLLICULATA Linn. 



CAREX INTUMESCENS Rudge. 



CAREX ASA-GRAYI Bailey. Carex Grayii Carey. 



CAREX LUPULINA Muhl. 



CAREX LURIDA Wahl. 



CAREX LURIDA GRACILIS (Boott.) Bailey. 



CAREX FRANKII (Kunth.) Carex stenolepis Torr. 



CAREX SQUARROSA Dewey. 



CAREX STRICTA Lam. 



CAREX TORTA Boott. 



CAREX PRASINA Wahl. 



CAREX CRINITA Lam. 



CAREX CRINITA x PRASINA Bailey, Flor. W. Va. , 460 (1892). 



CAREX VIRESCENS Muhl. 



CAREX VIRESCENS COSTATA (Schw. ) Dewey. 



CAREX TRICEPS HIRSUTA (Willd.) Bailey. 



CAREX DEBILIS RUDGEI Bailey. 



CAREX VENUSTA MINOR Boeckl. 



CAREX GRACILLIMA Schw. 



CAREX AMPHIBOLA Steud. Carex grisea angustifolia Boott. 



CAREX GLANCODEA Tuck. 



CAREX LAXIFLORA Lam. 



CAREX LAXIFLORA PATULIFOLIA (Dewey.) Carey. 



CAREX ALBURSINA Sheldon. Carex laxiflora latifolia Boott. 



CAREX DIGITALIS Willd. 



CAREX LAXICULMIS Schw. 



Carex platyphylla Carey (Nuttah). 



CAREX PLANTAGINEA Lam. (Nuttall). 



Carex Varia Muhl. (Nuttall). 



CAREX VARIA COLORATA Bailey. 



CAREX PENNSYLVANIA Lam. 



CAREX PEDICILLATA (Dewey.) Britton. Carex communis Bailey. 



CAREX JAMESII Schw. 



CAREX LEPTALEA Wahl. Carex polytrichioides Muhl. 



