Abstract Intraspecific trait variability (ITV) can be considerably high and reveal plant local adaptation. The aim of this study is to investigate ITV leaf traits (including petioles) in a rooted floating-leaved macrophyte ( Nuphar lutea ) at the scale. We expected see changes resource-use strategies relation water sediment properties. 96 leaves were sampled hyper-eutrophic shallow lake central...

Foliar and petiole micro-morphological characteristics of some members the genus Vernonia namely; amygdalina Del. (bitter variety), (non-bitter cinerea (L) Less., galamensis (Cass.) adoensis Sch. Bip. in Jos, Nigeria was investigated to provide additional characters support existing taxonomic information regarding species. Epidermal peels fresh leaves were made transverse sections petioles cut ...

This paper deals with the pharmacognosy of Hyptis suaveolens leaf including its morphological, anatomical, chemical constituents and powder analysis. Contrary to earlier reports, the leaves are amphistomatic. Stomata are diacytic, a few being isotricytic and ansiotricytic. Four types of trichomes have been noted. The venation is semicraspidodromous. Midrib consists of one large moon shaped and ...

and petiole, the interveinal tissue did not reach tritium equality with major veins, the stem, or the external solution. Water of the interveinal tissue maintained a stable tritium content at 60 to 70 % of external concentration for long periods. The pattern of results obtained was similar in sunflower and tobacco. Tritium content of leaf-tissue water vapor transpired by the canopy of an intact...

Heliconia berguidoi (Heliconiaceae), a new species from premontane forest of eastern Panama, is described, illustrated and its conservation status evaluated. Heliconia berguidoi bears pink flowers, an uncommon color in this group. It differs from the Colombian species Heliconia rhodantha and Heliconia sanctae-theresae, the most similar taxa, by the combination of a petiole glabrous except for t...