30 



CENTRAL EXPERIMENTAL FARM 



CENTATTKEA Gon. 



*C. montana, L. Mountain Bluet. 



Europe. 



PL, 1895. Hardy. Ht. li ft. FL 

 violet; May 28 to Aug. 12. 



**C. montana alba. 



PL, 1895. Hardy. Ht. 1* ft. FL 

 white; May 26 to Sept. 20. 



**C. montana caerulea. 



PL, 1901. Hardy. Ht. 2 ft. FL 

 purplish blue; purple in centre; 

 May 28 to July 12. 



C. montana grandiflora. 

 PL, 1907. 



**C. montana Lady Florence Hastings. 

 PL, 1895. Hardy. Ht. 1J ft. FL 

 white; May 28 to Sept. 17. 



*C. montana rubra. 



PL, 1895. Hardy. Ht. 1 ft. FL 

 lilac; May 26 to Aug. 12. 



C, nigra, L. Black Knapweed. Europe. 

 Syn. 0. Debeauxii, Godr. & Gren. 



PL, 1901. Hardy. Ht. 3| to 4 ft. 

 FL magenta; July 6 to Sept. 8. 



C. nigrescens, WILLD. Europe, &c. 

 PL, 1901. Hardy. Ht. 4 ft. FL 

 lilac; June 30 to Aug. 29. 



C. picta. 



PL, 1901. Hardy. Ht. 2} to 3} ft. 

 FL pinkish purple ; July 2 to 

 Sept. 9. 



C. ruthenica, LAM. Caucasus and Si- 

 beria. 



PL, 1898. Hardy. Ht. 3} ft. FL 

 sulphur yellow ; July 6 to Aug. 1. 



C. salmantica, L. Europe, &c. 

 PL, 1901. Half hardy. 



C. Scabiosa, L. Greater Knapweed. 

 Europe. 



PL, 1905. Hardy. Ht. 4* to 5 ft. 

 FL rosy purple; July 3 to Sept. 

 11. 



CEPHALARIA, SCHRAD. 

 (Dipsacece.) 



C. radiata, GRISEB. & SCHENK. Tran- 

 sylvania. 



PL, 1903. Half hardy; Ht. 2* ft. 

 FL creamy white; Aug. 15 to 

 Sept. 11. 



**C. tatarica, SCHRAD. Siberia, &c. 

 Syn. Scabiosa gigantea, Ledeb. 

 PL, 1898. Hardy. Ht. 6} to 7 ft. 

 Sulphur yellow ; July 2 to Aug. 4. 



CERASTIUM, L. MOUSE-EAR CHICKWEED. 

 (Caryophyllacece.) 



C. arvense compactnm. 



PL, 1895. Hardy. Ht. 5 in. 



C. purpurascens, ADAMS. Asia Minor, 



&c. 



PL, 1901. Hardy. Ht. 4 in. FL 

 white; June 6 to July 16. 



C. tomentosum, L. Europe, &c. 



PL, 1895. Hardy. Ht. 6 in. FL 

 white; June 6 to June 17. 



CHELIDONIUM, TOURN. CELANDINE. 

 (Papaveracew.) 



C. majus, L. Celandine. Europe, &c. 

 . PL, 1894. Hardy. Ht. 2 ft. FL 

 yellow; May 20 to Aug. 



C. majus lacmiatum. 



PL, 1904. Hardy. Has cut leaves. 



CHELONE, L. TURTLE HEAD. 

 (Schropulariacece.) 



0. "barbata, Cav. = Pentstemon ~barba- 

 tus, Roth. 



C. glabra alba. 



PL, 1895. Hardy. Ht. 2i to 3 ft 

 FL white; Aug. 29 to Sept. 29. 



*C, Lyoni, PURSH. North America. 



PL, 1895. Hardy. Ht. 2 to 3} ft. 

 FL rosy purple ; Aug. 18 to Oct. 8. 



C. nemorosa, DOUGL. North America. 

 PL, 1907. 



CHIOGENES, SALISB. 



(Vacciniacece.) 



Chiogenes serpyllifolia, SALISB. North 



America, &c. 

 PL, 1895. Hardy. 



