/ 



204 



MISSOURI BOTANICAL GARDEN. 



led 



■ 



and which the temperature conditions would not h 

 to exoect * On the other hand, at the Missouri '. 



been observed every 



south, the bulbs placed 



where 



do the 



TARLE M. 



FAMILIES 



Mr 



Ap 



My Je 



Jl 



Ag S 



O 



N 



I 



Ranunculaccac 

 Cruciferae. . . . 

 Leguminosae. . 

 Rosaceae 



Oiiagraceae, . . . 

 Umbelliferae. . . 

 Coinpositae. . . . 

 Asclep iadaceae . 

 Con vol vulaceae . 

 Solanaceae .... 

 Scrophularincae 

 Verbenaceae . . . 



Labia tac 



Amaranthaceae , 

 Chenopodiaccae 

 Polygonacoae . . 



Euphorbiaccae. 

 Lihaceae 





Cypcraceae 

 GTamiiieae. 



2 



11 



25 



16 



7 



2 



1 











4 



14 



20 



16 



9 



5 



3 



3 



1 



1 



5 



11 



28 



33 



27 



10 



3 











14 



30 



13 



9 



2 



2 



















2 



7 



13 



10 



5 











1 



4 



10 



11 



10 



5 



1 















4 



14 



19 



45 



72 



69 



13 



1 











2 



6 



9 



5 



























1 



6 



8 



1 



7 



















1 



3 



9 



1 



7 



4 



3 











3 



5 



9 



8 



12 



9 



1 











1 



2 



7 



9 



8 



5 



1 







1 



2 



7 



11 



21 



20 



9 























2 



4 



2 



3 























1 



5 



7 



4 



1 



1 











5 



7 



15 



16 



8 



1 



1 











1 



3 



9 



14 



6 



3 



2 











9 



G 



























4 



28 



33 



25 



20 



12 



3 











1 



13 



23 



25 



30 



1 



22 



10 



1 



SPECIES OF IMPORTANT FAMILIES IX FLOWEB, MAKCH TO 



SR. 



It must be remembered in this connection that tulips, by 

 winter, have formed the next year's leaves and flowers and 

 that this development has advanced so far that even the 

 pollen mother cells have divided. Similar conditions are 

 exhibited by many of the more familiar spring flowering 

 Impedes such as Anemone ffepatica, Sangidnaria canadensis^ 

 Asarum canadcnse, Arisaema triphyUum and others. f In such 

 cases the time of flowering evidently depends in a measure 

 on the climatic conditions of the summer and fall preceding 

 as influencing the development of the flower buds. Some, 



1S95 



Gunther, S. Die riuinologio. Natur und Offenbarung. 41. 

 t Foerste, A. F, The Hibernacula of Herbs. Am. Nat. 17:1107 

 1883.— Why Flowers Blossom Early. Am. Nat. 19:301. 1885. 



\ 



