1904] 



Clark, — Arisasma triphyllum 



163 



Mountains {^Tuckerma7i) ; Crawford Notch, 1888 {Sivan) ; Oakes 

 Gulf, Mt. Washington, alt. 4500 ft., June 29, 1898 {WiUiams) \ 

 Ammonusuc River, September. 1842 {A. Gray) : Vermont, Brook- 

 line June 30, 1895 {Grout): Massachusetts, Buckland, July 26, 

 1903 {F. F. Forbes): Ontario, Nepigon, September, 1896 {G. S. 

 Miller) ; near Sault Ste. Marie, 1848 {Loring) ; Silver Islet, August. 

 187 1 {Gillman): Manitoba, Lake Winnipeg, 1857 [Bourgeaii). — 

 Occasional specimens from alpine situations have the small fertile 

 aments of A. crispa, but ordinarily this shrub of temperate areas is 

 very constant in its characters and is quite unlike any Old World 

 shrubs of the viridis group known to the writer. 



Gray Herbarium, 



An Interesting Specimen of Aris.ema triphyllum, Torr., the 

 common " Jack-in-the-Pulpit," was recently brought to me by a school- 

 boy. It showed a peculiar malformation, the inflorescence being 

 made up of two spathes and three spadices. The spathes w-ere each 



perfectly formed and were connected at 

 the base where one overlapped and en- 

 closed the other ; but the spadices were 

 each much wider throughout than is nor- 

 mal, and they were also deeply grooved 

 and ridged lengthwise, and united at the 

 base where tlie spathes scarcely clasped 

 around them. 



Whether or not the plant showed any 

 other tendency to abnormal growth I am 

 unable to say, for the "flower," snapped 

 off boy fashion, is all that I have been 

 able to procure. Probably some read- 

 ers of Rhodora have seen monstrous 

 growths of Arisiema triphyllum in which 

 there have been two spathes with one 

 spadix, as noted by Prof. W. W. Bailey, 

 Bot. Gaz, ix, 177, or vice versa, but I doubt if anyone has before 

 come across a specimen showing so much divergence from the nor- 

 mal form as is found here in the specimen illustrated. — Alice G. 

 Clark, East Weymouth, Massachusetts. 



