1917] Goodspeed: Notes on Trillium 79 



striking as is the case of pistollody of the perianth shown in plate 15, 

 figure 1. No trace of ovules was to be found in the inflated regions 

 of the expanded connective. 



2. Collected as 1 ; rootstock not preserved. Normal in every way 

 except that one petal was much curved and bore a shrunken and 

 empty anther cell along half its inner, curved edge. 



3. Collected in the Berkeley Hills; the rootstock not preserved. 

 This plant showed four leaves, averaging 103 mm. in length and 

 95 mm. in greatest width ; four sepals, averaging 46 X 13 mm. ; four 

 petals, of which three were normal and averaged 65 X 16 mm., and 

 the fourth was curved and anther-bearing as in number 1 above ; seven 

 stamens, and four styles and stigmas. The leaves and flower parts 

 were regular and, as indicated, the flower was practically symmetrical. 



4. First collected in the Berkeley Hills by Dr. Brandt in 1915, 

 marked and collected again in 1916 ; the rootstock not preserved. In 

 1915 this rootstock bore at least two shoots. When this plant was first 

 noted a large collection of mature ovules was being made for cyto- 

 logical purposes; and when the pistils of the shoots from this root- 

 stock were cut open, supernumerary pistils were found within the 

 ovary at the base. This condition was apparently characteristic of 

 the pistils of all the shoots from this rootstock, and the structures 

 themselves, in the case of two of the shoots, were preserved in fluid. 

 One of these intracarpellary pistils is shown in plate 17. d. The size 

 of the main carpellary structure was not perceptibly increased and it 

 was normally provided with ovules on parietal placentae while the 

 small included pistils of the type shown in the figure occurred at the 

 base, imbedded in a mass of spongj' proliferations of the placental 

 tissue. As will be seen, ovules were present on these intracarpellary 

 pistils, although borne on their surfaces, while the tissues of the ovary 

 within were undifferentiated. 



Plants from this rootstock collected the following season (1916) 

 showed merely a trace of the same condition, but distinctly enough 

 to indicate that it is subject to recurrence from this rootstock. 



5. Collected in the Berkeley Hills, 1914; rootstock not preserved. 

 Numbers 5 and 6 represent nearly identical instances of pistillody in 

 which the petals are o\aile-bearing. Number 5 has been elsewhere 

 described (Goodspeed. 1916) and the nature of the abnormal condi- 

 tion is shown in plate 15, figure 2, and in plate 17, a. The description 

 given in the case of number 6 below will, with modification there noted, 

 hold for this plant also. 



