• HOME
  1. 日本語
  2. English
• Personal Info.
  1. CV
  2. For candidates
  3. Give me job!
  4. Recent(?) Photos
  5. Master/doctor theses
• Education
  1. Catalog
  2. HUSTEP
  3. Ecology
  4. Natural env. studies
  5. Environ. conserv.
  6. Field trip for Env. Res.
     
  7. Eco-campus(plants)
  8. Symbiosis in nature
  9. Beadroll
  10. Glossary(References)
• Research
  1. Abstract
  2. Volcanic succession
  3. Wildfire ecology
     
  4. Wetland conservation
  5. Skislope vegetation
  6. Mining
  7. Pub: English
  8. Pub: Japanese
• Hobby · Link
  1. Yoshida
  2. Plant taxonomy
  3. Plants
  4. Cup of tea
  5. Western Australia
  6. Link
  7. Contact

(First upload on September 15 2009. Last on November 15 2018) [ 日本語 | English ]

[Engler's syllabus エングラー体系]

Cercidiphyllaceae Sieb. et Zucc.

---

consisting of (one or) two species in genus (Cercidiphyllum) Cercidiphyllum Sieb. et Zucc. (カツラ) C. japonicum Sieb. et Zucc. (カツラ) C. magnificum (Nakai) Nakai (ヒロハカツラ, large-leaved katsura), syn. C. japonicum Sieb. et Zucc. var. magnificum Nakai Distributed only in the Chubu District of Japan Leaf: larger than C. japonicum Bark: smooth until large

Katsura forest established in Tsukiura Forest Park faced to Toya Lake on September 4 2018.

Cercidiphyllum japonicum in Hokkaido

---

Katsura (カツラ, 桂), Katsura tree Lifeform: large, deciduous, dioecious tree (up to ≈ 30 m in height) ☛ Giant tree (巨木) Distribution: Japan (one variety is distributed in China - controversial) Habitat: streamside, valley, etc. On Mount Usu, the ridges are occuplied by Populus maximowiczii, and the valleys are by C. japonicum Flora on Mount Usu

Shoot: producing long and spur shoots Flower: no petals Seed: produced wings - wind dispersal Chromosome number: 2n = 38

f. pendulum (Miyoshi ex Makino et Nemoto) Ohwi (シダレカツラ), syn. C. magnificum (Nakai) Nakai f. pendulum (Miyoshi ex Makino et Nemoto) Spongberg, often used

1 2 3
4 5 6
[1] a tree near the 2000 crater (K-1) at the foot of Mount Usu on September 9 2009. [2-3] In Nakagawa Experimental Forest, Hokkaido University, on June 16 2011. [4] a bark seen along a lake coast on Toya Lake close to Toya Lake Experimental Station, HU, on August 23 2011. [5] male flowers on a transplanted tree in the Hokkaido University campus on May 10 2013. [6] a seedling at Sakushu-kotoni River i nthe HU Campus on July 11 2013.

---

f. pendulum C. magnificum (Nakai) Nakai f. pendulum (Miyoshi ex Makino et Nemoto) Spongberg

Shidare-katsura (シダレカツラ), weeping katsura-tree

Lifeform: weeping-typed C. japonicum Distribution and habitat: same with C. japonicum

1 2 3
[1-3] at the entrance of greenhouse zone managed by Faculty of Agriculture in the campus of HU on August 14 2024.