256 METASPERMAE OF THE MINNESOTA VALLEY. 



XLV> CRUCIFERAE. Mustard Family. 



Endlicher, Gen. PL 861 (1840); Benth. and Hook., Gen. PL I, 58 (1862); 

 Prahtl, Engler and Prantl, Nat. Pflanz. 3, II, 145 (1890); Baillon, Hist. PL 

 III, 181 (1871). 



Genera: 160 200; cosmopolitan; centers of distribu- 

 tion in boreal region and Mediterranean region. Fossil forms 

 poorly understood; principally old world plants. 



Species: 2000 ; reduced to 1200 (B. and H.); most 

 numerous in the Orient. 



THELYPODIUM ENDL. Gen. 4915 (1336-40). 



Pachypodium NUTT. Torr. and Gray, Fl. N. Am. I, 96 f!838). 

 Macropodium HOOK. Bot. Beech. 74 (1841). 



Baillon, Hist. PL III, 243; Benth. and Hook., Gen. PL I, 81; Engler 

 and Prantl, Nat. Pflanz. 3, II, 155 (Prantl); Durand, 2nd. Gen. Phan. 13. 



t Living species: 15 ; mostly Calif, and Rocky mts. 

 North America, 15; Calif., 10; W. Tex., 5; Rocky mts., 7; PI. 

 King, 9; PL Wheel., 5; E. Sts., 1; Canada, 1; S. Sts., 1. 



Thelypodium pinnatifldum (Micnx.) S. WATSON, King 

 Exp. 25 (1871). 



Hespens (?) pinnatifida MICHX. Fl. N. Am. II, 31 (1803). 

 Cheiranthus hesperioides T. and G. Fl. N. Am. I, 72 (1838). 

 lodanthus hesperioides T. and G. Gen. I, 134 (1849). 

 Wats, and Coult., Gray's Man. 6 ed. 72; Upham, Fl. Minn. 25; Chap., 

 Fl. S. St. 25; Cov., Fl. Ark. 165: Wats., Bibl. Ind. I, 73. 



North America: Penn. to Ohio and Minn.; S. to Tex. 

 Minn, valley: Only S. E. edge of valley and rare; 

 stony places. 



HERB. : Sandberg 64, Red Wing. 



LEPIDIUM LINN. Gen. 527 (1737). 



Physolepidium SCHRENK. Enum. 97 (1841-42). 

 Manoploga BUNGE, PL Preiss. I, 259 (1836). 

 Cardaria DESVX. Jour. Bot. Ill, 163 (1810). 

 Lepia DESVX. Jour. Bot. Ill, 166 (1810). 

 Cynocardamum WEBB, Phyt. Can. I, 96 (1836). 

 Baillon, Hist. PL III, 284; Benth. and Hook., Gen. PL I, 87; Engler 

 and Prantl, Nat. Pflanz. 3, II, 160 (Prantl); Durand, Ind. Gen. Phan. 17; 

 O. Kuntze, Rev. Gen. PL I, 34; Gray, III. Gen. 1, 167; Schenck, Palaeophyt. 

 514. 



Living species: 100 ; 60-80 (B. and H.); all regions 

 except arctic and alpine. Russia, 20; Europe, 25; European 

 Russia, 9; North America, 17; PI. King, 9; PL Wheel., 5; W. 

 Tex., 4; Canada, 3-7; S. Sts., 1; E. Sts,, 2. 



Fossil species: 1, Upper Miocene, Europe (Heer); 

 doubtful. 



