Circaea 



Onagraceae 



709 



Jan. 



Feb. 



Mar. 



Apr. 



May 



June 



July 



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Miles 



50 



Map 1496 



Gaura coccinea Pursh 



Map 1497 

 Gaura filipes Spach 



~W 



Map 1498 



Circaea latifolia Hill 



specimen, collected near Plainville, Daviess County as Gaura filipes var. 

 major T. & G. In 1938 Kriebel collected plants from the exact place where 

 I collected my specimen and the sepals of all the specimens are less than 

 7 mm long, so I am referring all my specimens to the species. 

 Ind. to S. C, southw. to Fla. and Miss. 



5828. CIRCAEA [Tourn.] L. 



Leaves dark green above, rather firm, rounded or subcordate at the base; mature 

 pedicels strongly reflexed; calyx lobes mostly 1.4-2 mm wide; disk cuplike, pro- 

 longed about 0.5 mm beyond the perianth; anthers 0.7-1 mm long; stigma shal- 

 lowly 2-lobed; mature fruit compressed-pyriform, with 3-5 longitudinal corruga- 

 tions on each face, 3.5-5 mm wide (including the hairs) 1. C. latifolia. 



Leaves pale green above, flaccid, cordate or subcordate at the base; mature pedicels 

 spreading or only slightly reflexed; calyx lobes 0.8-1.7 mm wide; disk inconspic- 

 uous; anthers 0.2-0.8 mm long; stigma deeply cleft; fruit clavate, not corrugated, 

 1-3 mm long (including the hairs) . 

 Rootstocks slender; calyx lobes 1.2-1.7 mm wide; petals 2.3-3.5 mm long; anthers 

 0.5-0.8 mm long; fruit unequally 2-celled, 1.5-3 mm wide (including the hairs). 



(See excluded species no. 472, p. 1077) C. canadensis. 



Rootstocks tuberous-thickened; calyx lobes 0.8-1.2 mm wide; petals 2-2.5 mm long; 

 anthers 0.2-0.3 mm long; fruit 1-celled, 1-1.5 mm wide (including the hairs) .... 

 2. C. alpina. 



1. Circaea latifolia Hill.* (Circaea lutetiana of authors, not L.) (See 

 Rhodora 17: 222. 1915 and 19: 87. 1917.) Enchanter's Nightshade. 

 Map 1498. In woodland of almost all kinds, preferring wooded ravines and 

 beech and sugar maple woods. Infrequent to frequent throughout the state 

 except on the crests of black oak and chestnut oak ridges, on the dunes, 

 and in prairies. The sepals of this plant are usually green, but sometimes 

 are rose purple. 



N. B., N. S., and Maine to Minn., southw. to N. C, Tenn. and Okla. 



* The name now proposed for this plant is Circaea quadrisulcata (Maxim.) Franch. 

 & Sav. var. canadensis (L.) Hara. (Rhodora 41: 386-387. 1939.) 



