200 



THE BOTANICAL MAGAZINE. 



[Vol. XXXIL No. 381. 



There is no room for doubt that the. var, ft simplex is a 

 more primitive form, while the other a highly developed one in 

 respect of the staminode and the nervation of the sepals and 

 petals. No other known species belonging to the sect. Nectaro- 

 trilobos^ possess staminodes furnished with more than three 

 setae. 



IV.— Occurrence of Parnassia palustris var. alpina in Japan. 



Although Parnassia palustris L. is very widely distributed 

 over Japan, occurrence of var. alpina has so far been not recorded. 

 The writer has examined a few specimens of this variety from 

 two different localities. As this form is new to the flora of Japan, 

 a description from the Japanese specimens will be given below: — 



43 



44 



Parnainia palustris L. var. alpina Drude. 



43 



43, 44. From the Shiro- 



38. 39. Sepals. 40. Petal. 41, 42. Staminodes. 43. Sepal. 44. Pelal 

 All x 5. 



38-42. From the specimens obtained on Tateyama 

 uma specimen. 



Parnassia palustris L. var. alpina Drude in Linnaca, 

 xxxix, p. 308 (1875). (figs. 38-44). 



Caules fasciculati vel solitarii, scapo gracili 3*3-7 cm. alto 

 angulato, infra medium folio uno ovato-orbiculato profunde 

 cordato, circiter 4 mm. lg. et It. vestito. Folia radicalia petio- 

 lata, petiolo 10-20 mm. lg., limbo diam. 5-6 mm. orbiculato- 

 ovato bassi cordato. Sepala oblonga obtusa, ca. 3mm. lg. 1'2 

 mm. It., 5— 7-nervia. Petala alba, ovata, basi rotundata, obtusa, 



1) Drude in Linnaea, xxxix, p. 302 (1875). 



