Studies of Teratological Phenomena. 



93 



per flower. Filaments not infrequently fused to corolla tube (adhesion). 

 Three or four of the sepals are always roseate colored in whole or in 

 part (calycanthemy). This character is variable and the anomalous 

 sepals usually are longer than the non- colored. The peculiar crinkled 

 effect shown in Fig. 6 is also characteristic and constant when even 

 the calycanthemy does not appear. Gynoecium normal. Fertility 

 100 per cent, and especially noticeable. Corolla is usually irregular. 

 The constancy of the anomalous character is perhaps better shown in 

 .Table 5. Table 5 gives an indivi- 

 dual record of 25 flowers of plant 

 396—1 (1911), together with six of 

 its progeny grown from inbred seed. 

 24 other 396 — 1 progeny were grown 

 in the same row and their range of 

 variability was approximately the 

 same as the six plants on which the 

 table is based. Masters (p. 384—85) 

 says teratological coloration of sepals 

 is especially common in gamose- 

 palous flowers and cites numerous 

 cases. 



Calycanthemy usually means 

 simply a change in color, but may 

 not infrequently be accompanied by 



structural changes, and this is said to be especially true in cases where 

 displacement of organs has occurred. In the 396, as grown in our cul- 

 tures, structural changes were always present in some form and degree. 

 Splitting of the corolla tube and the formation of and adherence of an 

 extra petal were especially common. Coloration in at least one sepal 

 and usually three was characteristic. The dwarf (mutant?) mentioned 

 differed from the race only in height, not in number of leaves nor in 

 type of flowers. 



Other Species. 



324. N. higelovii Watson. U. C. Bot. Garden 1909. Answers to 

 Comes' (p. 43) description, except in floral characters. Sepals, petals 

 and stauiens vary between 5 and 7, per flower, 6 being very common. 

 The race breeds nearly true to a 3-loculed ovary. Sp. 25. (See Setchell 

 1912, p. 25). 



Fig. 14. N. calyciflora, Caille. 

 Note the calycanthemous sepals. 



