- • PREGLEDNO KAZALO •
- • CHAMAECYPARIS - pačempres - nazivi
- (Engl. više vidi > http://www.conifers.org/cu/ch/index.htmhttp://www.conifers.org/cu/ch/index.htm)
- • Chamaecyparis formosensis
- • Chamaecyparis funebris
- • Chamaecyparis lawsoniana
- • Chamaecyparis nootkatensis
- • Chamaecyparis obtusa
- • Chamaecyparis pisifera
- • Chamaecyparis taiwanensis
- • Chamaecyparis thyoides
Rezime na eng. jeziku:
"Chamaecyparis Spach 1841
Common namesCypress (Rushforth 1987, Welch and Haddow 1993), white-cedar, false-cypress, faux-cypres (Michener 1993).
Taxonomic notesFive species depending on taxonomic opinion. Some authors include all species of Chamaecyparis in the genus Cupressus (Michener 1993), but genetic studies indicate they are generally not particularly closely related (Brunsfeld et al. 1994, Gadek and Quinn 1993). One species sometimes included in this genus, Ch. funebris, is here assigned to Cupressus, and another, Ch. nootkatensis, is here assigned to Xanthocyparis (Rushforth 1987, Welch 1991, Farjon 1998, Gadek et al. 2000) on the basis of various lines of evidence. Two other taxa sometimes treated as species (Ch. henryae and Ch. taiwanensis) are usually treated as subspecies or varieties of Ch. thyoides and Ch. obtusa respectively. Cultivated juvenile forms of several species have been referred to the superfluous Retinospora Siebold & Zuccarini.
DescriptionTall monoecious trees (rarely shrubs) of pyramidal habit, the bark smooth, peeling off in strips or scales or fissured into ridges. Leading shoots nodding, branches spreading, the branchlets dorsiventrally flattened, rarely (Ch. thyoides) more or less terete or rhombic in cross section, in fan-shaped or pinnately flattened sprays. Leaves opposite in 4 ranks. Juvenile leaves subulate. Mature leaves opposite, scale-like, lateral and facial pairs of differing shape, similar in size or the facial pairs smaller, and closely overlapping, ovate to rhombic, acuminate to obtuse, entire. Staminate cones ovoid to oblong, yellow or (usually) red, stamens decussate, with 2-3 pairs of sporophylls, each sporophyll with 2-4 pollen sacs. Ovulate cones maturing and opening in 6-8 months from pollination, shed soon after seed release, globose to ovoid-globose, green or violet, often glaucous, maturing brown, 4-12(-14) mm; scales persistent, (2-)3-5(-6) pairs, peltate or basifixed, thick and woody, the terminal pair fused. Seeds (1)2-4(5) per scale, slightly compressed, with 2 equal, membranaceous wings. Cotyledons 2, rarely 3. x = 11 (Li 1975, Michener 1993, Walker 1976).
RangeNorth America, Japan and Taiwan (Li 1975).
Big treeSee Ch. formosensis.
OldestI have no reliable age data for any of the species. Based on life history, distribution, and analogy with similar members of the Cupressaceae, it seems likely that the oldest trees are more than 1,000 years old.
EthnobotanyThe genus is of immense importance to modern horticulture; two species (Ch. lawsoniana, Ch. pisifera) account for perhaps 80-90% of the ornamental conifers grown in British gardens.
ObservationsSee the various species.
RemarksThe name Chamaecyparis is derived from the Greek: chamai = on the ground, and kyparissos = cypress (Walker 1976).
Several of the species show high variation in seedbeds, leading to the selection for horticultural use of many hundred cultivars. "Three [Ch. lawsoniana, Ch. pisifera, Ch. obtusa] are very variable and have given rise to a ridiculous flood of selected seedlings and mutations, many of which are so similar to others as to be just not worth perpetuating. Unfortunately this flow still continues. Very great restraint should now be exercised in introducing fresh forms that will add more names to our listings but no more beauty to our gardens" (Welch and Haddow 1993). This exasperated remark is followed by a 57 page list of Chamaecyparis cultivar names, including 29 pages with 559 names in Ch. lawsoniana alone - no wonder!
CitationsAmerican Lumberman. 1911.11.11. "The Realization of a Great Commercial Dream." American Lumberman n.v. (November 11, 1911):43-142.
Welch, H.J. 1991. The Conifer Manual vol. 1.
Welch, H.J. and G. Haddow 1993. The World Checklist of Conifers.
This page co-edited with M.P. Frankis, 1999.02.
See alsoFarjon (2005)." (Izvor: http://www.conifers.org/cu/ch/index.htm)
- • THUJA - tuja - nazivi
- (Engl. više vidi > http://www.conifers.org/cu/th/index.htm)
- • Thuja koraiensis
- • Thuja occidentalis
- • Thuja orientalis
- • Thuja plicata
- • Thuja standishii
- • Thuja suchuensis
Rezime na eng. jeziku:
"Thuja Linnaeus 1753
Leaves obtuse at apex, rarely subacute.
Facial leaves without a gland; young branchlets not glaucous
Facial leaves with a gland; young branchlets ± glaucous
Leaves subacute to acuminate at apex.
Leaves acuminate at apex; lateral leaves longer than facial leaves, apex straight
Leaves acute or subabcute at apex, lateral leaves slightly shorter than or as long as facial leaves, apex incurved.
Facial leaves with a conspicuous abaxial gland
Facial leaves without a gland