﻿254 Farwell: Michigan Species of Polygonatum 



Michigan: Keweenaw Peninsula, June, 1886, Farwell 380a; 

 Ypsilanti, May, 1891, Farwell j Sob. 



' Polygonatum boreale australe var, nov. 



Leaves small (10-22 mm. wide by 2.5-5 cm. in length), elliptical 

 or the lower inclined to ovate-elliptical; peduncles filiform, com- 

 pressed only below the arch, one-flowered, flowers water-green 

 (Ridgw^ay's nomenclature), paler than the foliage. [Plate 14, B.] 



Sparsely wooded fields. Michigan: Detroit, May, 1895, 

 Farwell jSod. 



Polygonatum biflorum Walt, in Elliott, Bot. S. C. & Ga. i : 393. 



1817 

 Convallaria hiflora Walt. Fl. Car. 122. 1788. 

 Polygonatum angustifolium Pursh, Fl. Am. Sept. 234. 1814. 

 Polygonatum muUiflorum (3 americanum (in part) Hook. Flor 



Bor. Am. 2: 176. 1840. 



W^hole plant glabrous, with nine to thirteen, secund elliptical- 

 lanceolate leaves (18 mm. wide by 10-12.5 cm. long), rounded or 

 somewhat cuneately narrowed to a sessile base, and with three to 

 tiwemoreor less prominent nerves; peduncles slender, about 12;? 

 mm. long, two-flowered; flowers yellow; stems about 4.5 dm. high 

 and 2-3 mm. in diameter. [Plate 15, A.] 



Atlantic seaboard, not typically represented in Michigan. 



' Polygonatum biflorum virginicum (Greene) var. nov. 

 Polygonatum virginicum Greene, Lea^etsi: iSi. 1906. 

 Salomonia commutata (in part) Farwell, Rep. Com. Parks Detroit 



11: 53. 1900. 



Differing from the typical form of the species in its larger, 

 ovate-elliptical to oblong-elliptical leaves, which are 25-55 mm. 

 wide by 10-18 cm. long, with fifteen to twenty-three of the nerves 

 more or less prominent; in its larger stems, 6-8 mm. in diameter, 

 6-9 dm. high, with the naked lower portion equal to or longer 

 than the upper leafy part; in its larger flowers which are funnel- 

 shaped to linear-cylindric (4-6 mm. wide by 14-25 mm. long, even 

 on the same plant), borne on longer (often three-flowered) pedun- 

 cles (25-37 mm. in length), with subequal pedicels 6-10 mm. 

 in length; fruit ovoid to globular, 12-16 mm. in diameter; seeds 

 eight to ten. [Plate 15, B.] 



