Vol. III.] 



APPENDIX. 



513 



I. Nestronia umbellula Raf. 

 Nestronia. (Fig. 1276a.) 



Nestronia umbellula Raf. New Flora, 3: 13. 1836. 

 Darbya umbellulata A. Gray, Am. Joum. Sci. (II.) 



1:388. 1846. 



Shrub i-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 stamiuate 3-9-flowered umbels filiform, 

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

 the pedicels about 2" long, 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 %' in diameter. 



In woods and along: streams, Virginia to Georgia 

 and Alabama. April -May. 



[Vol. 1: p. 538.] ia. Asarum acu- 

 minatum (Ashe) Bicknell. Long-tipped 

 Wild Ginger. (Fig. 1277a.) 



A. Canadense var.' acuminatum Ashe. Oct. 1897. 



Similar to A. Canadense but 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; 

 calyx-lobes much longer than in A. Canadense 

 and duller bro-.uish-J>urJ>le, caudate-acuminate, 

 or flagellate, the. slender terminations rec.urved- 

 spreading, often flexuous, 5 // -lo // long. 



Rich woods, Minnesota and Wisconsin to Iowa, 

 Indiana and Ohio. May-June. 



[Vol. 1 : p. 538.] ib 

 Ginger. 



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



533- pl- 3i7- 1897. 



Similar to A. Canadense, more loosely 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 A. Canadense, the calyx-tube white 

 within; lobes of the calyx-limb early reflcxed, pur- 

 plish-brown, 4 // -5 // long, about as long as the 

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



Asarum reflexum Bicknell. 

 (Fig. 1277b.) 



Short-lobed Wild 



>// 



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. April-May. 

 Asarum reflexum ambiguum Bicknell, Bull. Torr. 



Club, 24:535. 1897. 

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

 often rectangular sinus; calyx-lobes narrower and 

 longer, 6"-8" long, the straight tip 2"-4" long, 

 sometimes extending back to the base of the ovary. 

 Michigan, Illinois and Missouri. 



33 



