Paronychia 



Caryophyllaceae 



443 



50 



Map 910 



Paronychia canadensis (L.) Wood 



^50 



Map 912 



Scleranthus annuus L. 



Plants glabrous LP. canadensis. 



Plants pubescent. 



Stipular bracts subtending the flowers shorter than the calyx 2. P. fastigiata. 



Stipular bracts subtending the flowers as long as or longer than the calyx 



2a. P. fastigiata var. paleacea. 



1. Paronychia canadensis (L.) Wood. (Anychia candensis (L.) BSP.) 

 Smooth Forked Chickweed. Map 910. Infrequent to rare throughout 

 the state. This species prefers a dry, and rather sandy soil, or very sandy 

 soil in dry places in woods, usually near the base of a large tree — which 

 is usually a white or black oak — where the wind has kept the ground free 

 from leaves and where the mineral soil is usually exposed. It is not absent 

 from the central counties, as our map indicates, but it would be difficult to 

 find it there now because woods that are not grazed are rare. 



Vt., Ont. to Minn., southw. to Ga., Ark., and Kans. 



2. Paronychia fastigiata (Raf.) Fern. var. typica Fern. (Anychia poly- 

 gonoides Raf.) Hairy Forked Chickweed. Map 911. Infrequent north- 

 ward and probably entirely absent from the northern tier of counties. It is 

 found in dry places in sandy or gravelly soil, usually where the soil is 

 exposed. 



Mass. to Wis., southw. to Fla., Ala., and Tex. 



2a. Paronychia fastigiata var. paleacea Fern. Rhodora 38: 421. 1936.) 

 Fernald has separated this form from the typical one because of the rela- 

 tive length of the bracts of the flowers. When I interpret this character 

 as applied to my specimens I find intermediates between the two extremes. 

 Neither this character nor others will satisfactorily separate the forms. 

 Usually the typical form when mature is reddish in color and the flowers 

 are much crowded on the ultimate branchlets while plants of the variety 

 are generally greenish, usually with an erect inflorescence and the flowers 

 are not crowded on the ultimate branchlets. It is to be noted that the 

 variety flowers a month or more earlier than the typical form. 



Del. and Pa. to 111. and Tenn. 



