APPENDIX 



211 



Digitalis purpurea, H. 82, C 204, 218 

 Iberis intermedia, C. 205, 218 



Leucanthemum cobennense, C. 213, 2n 

 Lychnis coronaria, C. 212 

 Scabiosa sanescens, C. 212, 218 



„ succisa, C. 210 

 Teucrium scorodnia, C. 213, 218, 222 



Foxglove 

 Candytuft, variety 



Durandii 

 Daisy 

 Dusty miller, variety 



Devil's-bit 

 Germander 



19. Quantitative long-day plants: high temperature required. 



Camellia japonica, Bonner, J. 1947, Camellia 

 Amer. Soc. Hort. Sci. 50: 401-408 



20. Short-day plants (qualitative or absolute); 



Ambrosia elatior, H, 116 

 Andropogon gerardi, H. 25 

 Bryophyllum pinnatum, H. 73 

 Cattleya trianae, H. 92 

 Chenopodium album, H. 112, Fig. 1-E, 



3-8 

 Chenopodium rubrum. Gumming, B. G., 



1959, Nature, 184: 1044-1045 

 Chrysanthemum morifolium, C. 214, 218 

 Coffea arabica, Piringer, A. A. and H. A. 



Borthwick, 1955, Turrialba 5: 72-77 

 Ipomoea batatas, H. 20 

 Ipomoea hederacea, H. 90 

 Kalanchoe blossfeldiana, H. 88 

 Lemnaperpusilla, 6746, Hillman, W. 



Amer. J. Bot. 46: 466-473, 1959 

 Lespedeza stipulacea, H. 60 

 Peril la ocymoides, Fig. 1-F • 



Phaseolus lunatus, H. 2 

 Phaseolus vulgaris, H. 3 

 Solidago spp., H. 108 

 Zea mays, H. 33 



no direct temperature effect. 



Ragweed 

 Beardgrass 

 Bryophyllum 

 Orchid 

 Pigweed varieties 



Pigweed 



Variety 4 

 Coffee 



Sweet potato 

 Morning glory 

 Kalanchoe 

 Duckweed 



Bush clover 



Lima bean, 2nd variety 

 String bean 

 Golden rod 

 Maize or corn, 2nd 

 variety 



21. Short-day plants; no causative temperature effect; critical dark period 

 inversely proportional to temperature. Demonstration of the inverse 

 relationship between critical dark period and temperature requires a fairly 

 elaborate physical facility for experimentation. Thus only three plants can 

 be listed in this category at present, although it seems quite likely that 

 further experimentation would move a number of plants from the above 

 category into this one. The cocklebur is included in this category. 



Chrysanthemum indicum, H. 76 Chrysanthemum 



Fragaria chiloensis, H. 18 Strawberry, 1st variety 



Xanthium pennsylvanicum, H. 103, Cocklebur 



Fig. 1-B 



22. Short-day plants at low temperature; day-neutral at high; no causative 

 effect of temperature on flowering. 



Cosmos sulphureus, H. 81 Cosmos, orange flare 



