著者

平山 良治 小西 達夫 橋本 保

出版者

国立科学博物館

雑誌

筑波実験植物園研究報告 (ISSN:02893568)

巻号頁・発行日

vol.6, pp.41-51, 1987-12

---

The relationship between certain infraspecific taxa or morphological variations and soil environments in Viola verecunda of Japan are surveyed. 1. The plants, representing the diagnostic characters of V. verecunda var. vercunda f. verecunda, were found at Rokko-1, Aoi-1 and Kijima-1, inhabit similar environments in vegetational and pedological conditions. 2. V. verecunda var. subaequiloba, was found at Rokko-2, inhabits a similar vegetational condition as the former, but the soil moisture content is very high. 3. The plants, representing the diagnostic characters of V. verecunda var. verecunda f. radicans, were found at Rokko-3 and Aoi-2, inhabit unstable or disturbed soil. The nutrients and natural fertility of soil are poor. The soil of these habitats are too much wet by stagnant water. 4. V. verecunda var. fibrillosa, was found at Kijima-2, inhabits the peat soil where it is low pH values and aquatic conditions.