266 NINETEENTH REPORT. 



Urticace.e — Nettle Family. 

 Urtica gracilis Ait. 



Santalace^ — Sandalwood Family. 

 Comandra umhellata (L.) Nutt. 



PoLYGONACE.* — Buckwheat Family. 



Rumex crispiis L. Yellow Dock. 



htimej: Acetosella L. Field sorrel. 



Polygonum lapathifolium L. 



Polygonum Hydropiper L. Common Smartweed. 



Polygonum hydropiperoides Michx. 



Amaranthace^ — Amaranth Family. 



Amaranthus retroflexiis L. Pigweed. 

 ATnaranthus hybridus L. 



Caryophyllace^^ — Pink Family. 



Stellaria longifolia Muhl. 

 Lychnis alba Mill. White Campion. 

 Silene antirrhina L. Sleepy Catchfly. 

 Saponaria officinalis L. Soapwort. 



Ranunculace^ — Crowfoot Family. 



Ranunculus sceleratus L. Cursed Crowfoot. 

 Ranunculus abortivus L. Small-flowered Crowfoot. 

 Ranunculus recurvatus Poir. Hooked Crowfoot. 

 Ranunculus pennsylvanicus L. f. Bristly Crowfoot. 

 Thalictrum dasycarpiim Fisch. and Lall. 

 Anemone cylindrica Gray. 

 Anemone quinquefolia L. Wood Anemone. 

 Caltha palustris L. Marsh Marigold. 

 Aquilegia canadensis L. Wild Columbine. 



MenispermacejE — Moonseed Family. 

 Menispermum canadense L. 



Laurace^ — Laurel Family. 

 Sassafras variifolium (Salisb.) Ktze. 



