In order to describe these ( usually tiny structures needing a hand lens ), botanists have developed their own specialized vocabulary : corolla, stamen, zygomorphic, hirsute, alternate leaves, and on and on.
32.
Textural criteria are less critical in classifying intrusive rocks where the majority of minerals will be visible to the naked eye or at least using a hand lens, magnifying glass or microscope.
33.
These glands are violet in the case of " M . arvense ", are visible under a hand lens, and take the form of minute scales ( about 0.45mm in diameter ) which secrete a sugary solution.
34.
But it was highly magnified close-ups, made with the equivalent of a geologist's hand lens at an outcropping of rock distinctive layering effect th # t, on Earth, occurs in the sediments of shallow lakes and streams.
35.
It challenges the clientele to be science-conscious and through the science equipment and apparatuses available, the students are given the opportunity to enjoy using the magnifying hand lens, dissecting kit, peeping through the microscopes and other laboratory thrills.
36.
In three summers of combing the High Peaks on his hands and knees, using a hand lens held by a thin rope around his neck, Miller has been unable to find several of the 45 species collected by Peck on his journeys.
37.
A more reliable characteristic to distinguish the poisonous specimens of wila from the edible ones is that the specimens that contain vulpinic acid usually have abundant, long, yellow pseudocyphellae that twist around the main branches ( these require a hand lens to see ).
38.
The most notable trait that characterizes the genus is the presence of pellucid punctations caused by internal secretory pockets of the leaves-to be seen these must be viewed with a hand lens while holding the leaf up to light in most species of the genus.
39.
"Melaleuca pomphostoma " is similar to " Melaleuca bracteosa " but differs from it in having fewer stamens ( " M . bracteosa " has 7 to 11 per bundle ), a different leaf shape and distinctive, numerous, white raised stomata, which are barely visible with a hand lens, on the leaf blades.
40.
Some of the tools used to evaluate a beach in the field include : dye ball water tracer for measuring currents such as longshore and especially dangerous rip and tidal currents, Secchi disk for measuring water clarity and visibility, a Brunton compass / clinometer to determine beach slope, field sieve set to determine sand grain size, and a hand lens for mineralogical identification.
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