Vol.. III.] 



Ari'KNDIX. 



513 



I. Nestronia umbellula Raf. 

 Nestronia. (Fig. 1276a.) 



Nestronia umbellula Raf. New Flora, 3: 13. 1S36. 

 Darbya umbellutata K. Gray, Am. Jourii. Sci. (U.) 



1:388. 1S46. 



Shrub l°-3° high, branching. Leaves thin, 

 i'-2' long, acute or obtuse at the apex, narrowed 

 or rounded at the base, pinnately veined, bright 

 green above, petioles i "-3" long; peduncles of 

 the staminate 3-9-flowered umbels filiform, 

 nearly or quite one-half as long as the leaves, 

 the pedicels about 2" loug, equalling the green 

 calyx; stamens shorter than the oblong-ovate 

 calyx-segments; pistillate calyx glaucescent, 

 about 3" long, the lobes much shorter than the 

 tube; drupe about '/i' in diameter. 



In woods and along streams, Virginia to Georgia 

 and Al.Tbuiia. .\|>iil Jhiy. 



[Vol. i:p. 538.] la. Asarum acu- 

 minatum (Ashe) Bicknell. Long-tipped 

 Wild Ginger. (Fig. 1277a.) 



.-). Canadense var.'acuminalum A.s\\e. Oct. 1897. 



Similar to ^4. Caiiadcnsehnt more pubescent, 

 at least when young. Leaves thin and mem- 

 branous, reniform-cordate and acutely short- 

 pointed or broadly reniform and blunt, at first 

 densely cinerous tomentulose on the lower sur- 

 face, less so when old, the larger veins often 

 densely divaricate- pubescent, giving the leaves 

 beneath a coarsely white- reticulated appearance; 

 cdlvx-lolics much longer thiiii in A. Ciniadense 

 and duller broxvnisk-purple, caudate-acuminate, 

 or flagellate, the slender terminations recurved- 

 ■i/treading, often Jlcxuons, %"-\o" long. 



Rich woods. Minnesota and Wisconsin to Iowa, 

 Indiana and Ohio. May-June. 



[Vol. I: p. 538.] lb. Asarum reflexum Bicknell 

 Ginger. (Fig. 1277b.) 



Asarum reflexum Bicknell, Bull. Torr. Club, 24: 



533. pi. JI7. 1897. 



Similar to A. Canadcnsr, more iooscly pubes- 

 cent, rootstocks more elongated, slender. Leaves 

 reniform, broader than long, the basal sinus shal- 

 low or deep, obtusely pointed, the upper surface 

 commonly nearly glabrous, the petioles often 

 nearly glabrous in age ; flowers smaller than 

 those of .1. Cunadrnsr, the calyx-tube white 

 within; lidirs of the calyx-limb early riflr\cd, pur- 

 plish-brown, 4"-5" long, about as loug as the 

 tube, triangular, with a straight obtuse tip, l"- 

 1" long. 



In rich woods, along streams or river valleys, 

 often forming large patches, Connecticut and south- 

 eastern New York to Iowa, North Carolina, Mis- 

 souri and Kansas. .'\pril-May. 



Asarum reflexum ambiguum Bicknell, Bull. Torr. 

 Club, 24: 535. 1897. 



Leaf-blades short and very broad, with a wide, 

 often rectaneular sinus; calyx-lobes narrower and 

 longer, <)"-8" long, the straight tip 2"-4" long, 

 sometimes extending hack to the base of the ovary. 

 Michigan, Illinois and Missouri. 



33 



Short-lobed Wild 



