MICIIIUAN ACADEMY OF SCIENCE. 363 



Carex paupercnlu Mx. var. irrigua iWtth\.) Fernald. In bogs. Keweenaw 

 Poiut, Sept. 12, 1887, No. G08, and Aug. 2C, 1912, No. .'WOO; Orion, July 7, 1918, 

 No. 5055, Farwell & Killington. 



Carex paupercnlu Mx. var. pallena Feniald. Keweenaw Co., July 5. 1S95, 

 No. 8541/i ; Orion, July 7, 1918, No. 5040a, Farwell & Billington. 



Carcx laxiflora Lam. var. leptoncrpiu, Fernald. This is accrcditod to 

 Michigan in Gray's Manual. I'ort Huron, June 23, 1918, No. 4977, Farwell & 

 Billington. Rare. In rich woods. 



Carer flara L. var. rectirostra Gaudin (C. flava vm: graminis Bailey). 

 Borders of Marl Lake, rare, June 9, 1918, No. 4923 ; Keweenaw Co., Aug. 24, 

 1888, No. 672 ; Dead Lake, July 16, 1910, No. 672b. 



Carex lanuginosa Mx. var. Kanmna, Britt. Plant with leaves Vz narrower 

 than in the species, spikes longer, narrower, and tapering at ba.se. Roadsides 

 near Rochester, May 28, 1918, No. 4882f. 



Carex retrorsa Sehwein var. Robinsonii Fernald. A form with slender 

 spikes. Rare. Ypsilanti, July 23, 1891 ; Dearborn, July 6, 1918, No. 5029. 



Carex luptiliAui Muhl var. polystachya Schw. & Torr. Common at Junior 

 in low moist grounds. July 13, 1918, No. 5064, Billington & Farwell. 



Carex vesicaria L. Roadside ditches near Lakeville. The typical species 

 not before reported from Michigan in so far as I am aware. June 2. 1918, 

 No. 4883, Farwell & Billington. 



LILIACEAE. 

 Erythroimim Americanum Ker. var. Bachii, n. var. A form in which the 

 lower half of the perianth segments, and stamens are purplish brown or 

 magenta. Near Bedford, May 19, 1918, No. 4851. Named for Mr. Bach of 

 Detroit, who found it in considerable numbers. 



Trillium rccurraiutn Beck. Perhaps the rarest Trillium in Michigan. 

 Near Rochester, May 15, 1918, No. 4822. Has been reported from Ypsilanti. 



Trillium ckunuum var. declinatum (A. Gr.) n. comb. (T. erectum L. 

 var. dcvlinatum A. Gr. Manual, 523, 1868). This plaut certainly is closely 

 related to T. cernuum L. In the "copper region" of Michigan where both are 

 plentiful they seem to intergrade and at times it is very difficult to determine 

 to which form certain individuals should be referred. It seems better to 

 regard them as e.xtremes of one species ratl»er than as two. KeweenaW Co.^ 

 July 8, 1886, No. 411; Ypsilanti, May 19, 1918, No. 4848. 



T. fxrnuHin ti. var. (ieCUnatUm A. Gr. f. Walpoi.ki n. f. Petals and often 

 thte filambnts aiui stigiiias deep purple. Named for Mr. B. A. Wali)ole of 

 Ypsilanti, onis of the discoverers. Ypsilanti, May 19* 1918, No. 4840. 



