By De-Yuan Hong
Codonopsis and its allied genera, are a bunch of crops that are vital in economic system and horticulture. A Monograph of Codonopsis and Allied Genera (Campanulaceae s. str.) bargains its viewers finished wisdom of those vegetation together with palynology, cytology, inhabitants biology, morphological description, geographical distribution with vouchers stated, first-class ink illustrations, and colour images, and keys to genera and to species.
This very good paintings will facilitate id of proper crops, use of plant assets, overview of endangered states, the improvement of conservation thoughts, and may advertise systematic and evolutionary learn of this group.
- Provides finished descriptions and classifications of Codonopsis and allied genera
- Richly illustrated with line drawings and top quality colour photographs
- Delineates and clarifies the relationships of Codonopsis and its allied teams in keeping with the analyses utilizing info from exterior morphology, pollen morphology, chromosomes, and molecular biology
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Extra info for A Monograph of Codonopsis and Allied Genera
Hong (1983) still recognized Campanumoea s. l. as an independent genus. Shen and Hong (in Hong, 1983) divided Codonopsis into three subgenera, subgs. Codonopsis, Pseudocodonopsis Kom. (1908) and Obconicicapsula D. Y. Hong (1980). Hong and Pan (1998) restored Cyclocodon at generic state based on observations on pollen and seed-coat morphology, combined with external morphology. Grey-Wilson (1990) merged Leptocodon Lem. with Codonopsis. The controversial views are clearly expressed in Hong etÂ€al.
Seeds ovoid-ellipsoid, winged, with wing at the distal end of hilum. Transection of seed body elliptic. Lumina striate, with length/width over 5. Radial walls wider than lumina, smooth, without secondary ornamentations. In transection radial walls elevated, tangential walls depressed, radial walls as wide as cell cavity. Observed samples: Codonopsis lanceolata (Sieb. ) Trautv. and C. ussuriensis (Rupr. ) Hemsl. (Figures II 2: 4, k–p). In addition, two incompletely known types were observed. They are both confined to alpine mountains of the Himalaya.
SEM Photographs of seed-coat morphology of Codonopsis and Cyclocodon. a & b, Codonopsis cordifolioidea P. C. ) Hook. f. subsp. japonica (Makino) Lammers; m–p, Codonopsis inflata Hook. f. & Thomson; q–t, Cyclocodon parviflorus (Wall. ex A. ) Hook. f. & Thomson. Scale bars = 50 μm. Biologyâ•‡Chapter | 2â•… 27 FIGURE II 2:2â•… a–v. SEM Photographs of seed-coat morphology of Cyclocodon and Codonopsis. ) W. J. de Wilde & Duyfjes; i & j, Codonopsis affinis Hook. f. & Thomson; k–n, Codonopsis benthamii Hook.
A Monograph of Codonopsis and Allied Genera by De-Yuan Hong