162 METASPERMAE OF THE MINNESOTA VALLEY. 



HERB.: Bailey 493, Agate bay; Bailey 435, Basswood 

 lake. 



Sisyrinchium anguslifolium MILL. Diet. (1768). 

 ? 8. gramineum LAM. Enc. Meth. I, 403 (1783). 

 8. anceps CAV. Diss. VI, 345U790). 

 8. lermudiana MICHX. PI, N. Am. II, 33 (1803) in part. 

 Wats, and Coult., Gray's Man. 6 ed. 515; Britt., Fl. N. J. 238; Upham, 

 Fl. Minn. 143; Mac., Fl. Can. II, 25: Chap., Fl. S. St. 474; Coult., Fl. Colo. 

 345; Richt., PI. Eur. 259; Hook., Fl. Gt. Brit. 396; Nym., Fl. Eur.; Led., 

 Fl. Ross. IV, 92; Wats., King Exp. 342; Cov., Fl. Ark. 223; Rothr., Alask. 

 456. 



Introduced? in Ireland and N. Germany. 



North America: Throughout, except Pac. coast region. 



Minn, valley: Throughout; abundant; prairies, fields 

 and grassy slopes. 



HERB.- Taylor 175, Janesville; Taylor 545, Janes ville; 

 Leonard 45, Minneapolis; Herrick 301, Minneapolis; Kassube 

 237, Minneapolis; Kassube 238, Minneapolis; Sandberg 562, 

 Red Wing; Herb. Sheld. 1840, Minneapolis; Herb. Moyer 234, 

 Montevideo. 



XXI. ORCHIDACEAE. Orchis Family. 



Endlicher, Gen. PI. 185 (1840); Benth. and Hook., Gen. PI. Ill, 460 

 (1883); Pfltzer in Engler and Prantl, Nat. Pflanz. 2, VI, 52 (1888). 



Genera: 350-400; cosmopolitan; principally tropical; 

 very few subpolar; abundant in mt. districts, especially in the 

 Himalayas. 



Species: 10,000; 5000 (Benth. and Hook.); a great 

 number are epiphytic. 



CYPRIPEDILUM LINN. Gen. 687 (1737) em. Pfitz. (1888). 

 Criosanthes RAF. Jour. Phys. LXXXIX. 102 (1819). 

 Arietinum BECK, Bot. 352 (1833). 



Benth. and Hook., Gen. PL III, 634: Durand, Ind. Gen. Phan. 404; 

 Engler and Prantl, Nat. Pflanz. 2, VI, 82 (Pfltzer). 



Living species: 20-25; temperate N. hemisphere to 

 Japan, N. India and Mexico; also Peru? N. America, 10-15; 

 Canada, 8; S. Sts., 4; California, 2-3; E. Sts., 6; Rocky mts., 2. 



ypripedilum acaule AIT. Horfc. Kew. Ill, 161 (1789). 



C. humile SALISB. Linn. Trans. I, 78 (1791). 



Wats, and Coult., Gray's Man. 511; Britt., Fl. N. J. 236: Mac., Fl. Can. 

 II, 22; Upham, Fl. Minn. 142; Chap., Fl. S. St. 464; Engl. Pfltzer, Nat. 

 Pflanz. II, 6, 83. ' 



North America: Newf. to Ft. Franklin and through- 

 out E. Can.; S. to N. J. and N. Car.; W. to N. Ind., Mich, and 

 Minn. 



