174 AMERICAN MIDLAND NATURALIST 



Anemonathaea. The groups doubtless deserves recognition for 

 reasons as valid as some of the segregates lately made. Because 

 of the resemblance in fruit these plants were by pre-Linnaean 

 authors first referred to Ranunculus^ rather than to Anemone 

 proper. Following are some of the eastern American allies as 

 also one of the Pacific coast: 



AnEmonanthaea (DC.) vS. F. Gray, Nat. Arr. Br. PI. II, 

 p. 724, (1822). 



Ancmanthus Fourr. Ann. Soc. Linn. Lyon. N. S., XVI., 

 p. 323, (1868). 



Anemonanthaea trifolia (Linn.). 



Anemone trijolia Linn., Sp. PI. p. 540, (1753). 



Anemonanthaea quinquefolia (Linn.). 

 Anc'iuonanthata qiiiyiquejolia Linn. 1. c. p. 541. 



Corniveum. 



The plant represented from the northwestern United States 

 as Dicentra nniflora Kellog, or Bicuctilla iiniflora, (Kellog) Howell 

 has floral structure and other very important characters quite 

 different from our eastern BicucuUa or~ Dicentra Cucullaria, and 

 canadensis. Though externally the flowers may appear some- 

 what like these, more careful examination shows them to be 

 at least as diiTerent as the so-called Californian BicuciiUas such 

 as B. ckrysantlia (Blanche) and B. ochroleuca (Engelm), and 

 Adlumia itself, which have been segregated into new genera. The 

 vegetative habit of the plant too is noticebly different. 



The sepals of BicucuUa uniflora are quite large, nearly if not 

 half as long as the corolla. The outer petals saccate at the base 

 are reflexed in an thesis below the middle by a long carinate tip. 

 The inner petals, not crested are different in shape from any 

 corresponding parts in any of this group of plants, and more 

 notably modified than those of the other well accepted genera 

 of Fumariaceae. They are arrow or halbred-shaped with a long 

 narrow claw extending nearly to the middle and at least beyond 

 one-third their length. Their apex is somewhat spoon-shaped 

 but crestless. The stamens are somewhat united under the inner 

 petals, the two lateral apparently the upper one-third of their 

 length in pairs, the other two are long recurved into the saccate 



I See Parkinson, J. Paradisus Tcrrcstris, (1623). 



