microphyllous


Also found in: Dictionary, Wikipedia.
Related to microphyllous: megaphyll

microphyllous

[¦mī·krō¦fil·əs]
(botany)
Having small leaves.
Having leaves with a single, unbranched vein.
Mentioned in ?
References in periodicals archive ?
We established sampling plots in two different plant communities: desert microphyllous and desert rosetophyllous scrublands.
From all 47 sampling sites, 19 correspond to microphyllous scrublands and 28 to rosetophyllous scrublands.
In experiments 1 and 2 the percentage loss of the microphyllous litter was significantly greater than for the mixed mesophyllous litter within LEM plots, but this was not the case for within-HEM plot comparisons [ILLUSTRATION FOR FIGURE 14 OMITTED].
The microphyllous litter was lost faster than the mesophyllous litter, in the LEM plots, possibly because its phosphorus content was higher (Table 6, [ILLUSTRATION FOR FIGURE 11A OMITTED]), and the difference between litter types was reduced in experiment 2 compared with 1 because water was more limiting (experiment 2 began one month earlier than experiment 1).
Hence, on lithosols and regosols derived from acidic and basic igneous rocks, microphyllous and sandy microphyllous deserts are replaced by sarcocaulescent desert, an open woodland physiognomically dominated by columnar cacti and many deciduous small trees that have fleshy stems of swollen appearance (sarcocaulescent of Shreve and Wiggins, 1964).
The joint canopy of xeric trees have an irregular height of 4 (thornscrub) to 10 m (thornforest), with microphyllous trees as dominants, mostly Leguminosae.
This last principle involves the origin of the microphyllous leaf of the Lycopsida.
This reduction is taken to extremes in microphyllous plants, as in the ephedras (Ephedra spp.
Nine different ecological zones have been defined within the reserve, including varied plant communities such as scrub with dominant or subdominant microphyllous shrubs like gobernadora (Larrea tridentata, Zygophyllaceae) and open scrub of sabaneta or tobosa grass (Hilaria mutica) and zacaton grass (Sporobolus airoides).
Serpentinicolous vegetation is spiny and microphyllous or sclerophyllous and forms islands in the middle of the basophilic, seasonal evergreen, or the semideciduous vegetation that grows on the limestone soils most common on the island.
Living conifers tend to have needle- or scale-like leaves containing a single vascular strand, but we find similar leaves in microphyllous plants.