Rydberg: Notes on Philotria Raf. 459 



as described. He stated also that he had examined eight specimens 

 collected by Moser in Pennsylvania, in 1832, and one by Schwein- 

 itz. These were all hermaphrodite, with from 2 to 7 stamens. 

 In the Torrey herbarium there is a specimen of Moser's collection, 

 but the tops of the flowers are broken off". In this specimen, how- 

 ever, the leaves are not oblong and obtuse, as described by Michaux, 

 but linear and acute. There are other specimens in our herbaria 

 with oblong or oblong-ovate leaves. One of these represents 

 Vdora canadensis of Torrey's Flora of New York from Torrey's 

 sets distributed in connection with that publication. The flowers 

 are hermaphrodite, as Torrey described his fertile flowers. Torrey 



tated that he had not seen any living sterile flowers but drew 

 his description of them from material collected by Engelmann. 

 This material I shall discuss later. There are other broad-leaved 



?ecimens, viz.: from Watertown, N. Y., 1834, Dr. Gray; East 

 Haven Pond, Conn, (collector not given) ; Thousand Islands, N. 

 y »July 16, \88% John Northrop ; Prior's Lake, Minn., 1891, C 



M 



IV. A. Murt 



Dr. & Mrs. N. 



have no 



flowers or the flowers are in such condition that it is impossible 

 t0 say whether they are pistillate or hermaphrodite. None of 

 these specimens has any sessile staminate flowers. Then the 

 question arises : is the broad-leaved, i. *., the typical Philotria 

 canadensis (Michx.) Britton always hermaphrodite ? Nobody, so 

 far as I can find, has described any staminate flowers in connection 

 *■* broad, oblong leaves. 



Se *<picula verticillata M 



1813. 



—nwm verticillata Muhl. Cat. PL Am. Sept. 84. IBI3- 



This is described as monoecious and 3-androus, but the state- 

 men t that the sepals and petals of the staminate flowers are four 

 must hav e been an error or else Muhlenberg's specimens were 

 ^normal. What it really was is of little consequence, as it is not 

 ^Picula verticillata L. 



Se *picui.a verticillata angustifolia Muhl. Cat. PL Am. Sept. 



8 4- 1813. 

 c This is of interest as it is the first name as far as known appli- 

 Ca ,e ^ a form evidently distinct from Elodea canadensis Michx. 



