162 METASPERMAE OF THE MINNESOTA VALLEY. 
Hers.: Batley 498, Agate bay; Bailey 435, Basswood 
lake. 
Sisyrinchium angustifolium MILL. Dict. (1768). 
2S. graminewum LAM. Enc. Meth. I, 403 (1783). 
S. anceps CAV. Diss. VI, 345 (1790). 
S. bermudiana Micux. Fl, 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., Pl. Eur. 259; Hook., Fl. Gt. Brit. 396; Nym., Fl. Eur.; Led., 
FI. 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. 
Hers.‘ Taylor 175, Janesville; Zaylor 545, Janesville; 
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. Pl. 185 (1840); Benth. and Hook., Gen. Pl. III, 460 
(1883); Pfitzer in Engler and Prantl, Nat. Pflanz. 2, V1, 52 (1888). 
Genera: 3850-400; 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 Rar. 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 (Pfitzer). 
Living species: 20-25; temperate N. hemisphere to 
Japan, N. India and Mexico; also Peru? N. America, 10-15; 
‘Canada, 8; 8S. Sts., 4; California, 2-3; E. Sts., 6; Rocky mts., 2. 
Cypripedilum acaule Arr. Hort. Kew. III, 161 (1789). 
C. humile Sauiss. Linn. Trans. I, 78 (1791). 
Wats. and Coult., Gray’s Man. 511; Britt., Fl. N. J. 236; Mac., Fl. Can. 
TI, 22; Upham, Fl. Minn. 142; Chap., Fl. 8. St. 464; Engl. Pfitzer, 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. 
