phanerophyte


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phanerophyte

a woody plant bearing buds more than 25 cm from the ground.
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The life forms of the specimens were classified according to Raunkiaer (1934), excluding epiphytes and considering succulents separately from phanerophytes. The proportions of herbaceous-subshrub/shrub-arboreal (epiphytes, succulents, chamaephytes, hemicryptophytes, and therophytes /phanerophytes) species were calculated for each of the vegetation types, for cerrado-caatinga transition, and for the different cerrado physiognomies.
Proposed by Raunkiaer (1934), the system classifies plants according to forms used to protect their perennating buds during unfavorable seasons, and groups them into five main classes: therophytes, cryptophytes, hemicryptophytes, chamaephytes and phanerophytes, according to their different resistance strategies to environmental conditions.
The Cryptophytes and Phanerophytes life forms were dominated in the herbal and regeneration layers, respectively (Table 1).
Les therophytes occupent les 45,1%, les chamephytes (26,8%), les hemicryptophytes (19,7%), les geophytes et les phanerophytes (4,23%).
A phanerophyte from the eastern Mediterranean and North Africa, Tamarix parviflora is widely cultivated as an ornamental in other parts of the world.
Among which chamaephyte, a perennial plant that sets its dormant vegetative buds just at or above the surface of the ground; geophyte, a perennial plant that propagates by underground bulbs or tubers or corms; phanerophyte, the surviving buds or shoot apices are borne on shoots which projected into the air.
We assigned the life-form of each species with an identification key (Mueller-Dombois and Ellenberg, 1974), considering only Raunkiaer's major classes - phanerophytes, chamaephytes, hemicryptophytes, cryptophytes, and therophytes - and including lianas in the "phanerophyte" class and geophytes in the "cryptophyte" class, as originally proposed by Raunkiaer (1934).
(2005) Ph phanerophyte, Ch chamaephyte, He hemicryptophyte, Cr cryptophyte, Th therophyte Fig.
It was either the only phanerophyte in the water or shared the habitat with Ruppia maritima.
The biological types are: C chamaephyte, G geophyte, H hemicryptophyte, Hy hydrophyte, P phanerophyte, T therophyte.
1 Table 15 Life form of the associations reported in tables 1-13 (calculated from frequency and expressed in percent, %; H, hemicryptophyte; Ch, chamaephyte; G, geophyte; T, terophyte; NP, nanophanerophyte; P, phanerophyte).
albopilosa Kentucky Life form Phanerophyte 39.1 51.4 16.3 Chamaephyte 1.1 2.9 1.4 Hemicryptophyte 37.9 28.6 51.2 Cryptophyte 12.6 10.0 15.3 Therophyte 9.2 7.1 15.8 Growth form Trees 19.0 26.7 7.7 Shrubs 10.0 14.0 6.8 Woody vines 7.0 4.7 2.5 Forbs(a) 40.0 20.9 61.9 Graminoids 10.0 16.3 16.8 Ferns 13.0 17.4 4.3 a Includes all herbaceous spermatophytes, except graminoids.