Read e-book online Colorado Flora: Eastern Slope PDF

By William A. Weber

This advisor, meant either for the scholar and scientist, deals an entire, authoritative connection with the vegetation of Colorado. It discusses plant geography, specified botanical good points of the mountain levels, basins and plains, and clarify easy terminology. fascinating anecdotes and introductions are given for every plant relatives, and tricks on recognising the most important households are supplied besides. each one quantity encompasses a entire word list, indices to universal and particular names, and hundreds of thousands of illustrations. This and its significant other quantity, were considered as the main whole publications on hand and are necessary to readers attracted to Colorado's vegetation.

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Leaves minute (less than 5 mm long), scalelike, overlapping, and appressed to the stem. Tamaricaceae, TAMARISK FAMILY 1b. Leaves larger and otherwise not as above (2) 2a. [1] Leaves covered by silvery or brownish peltate scales. Elaeagnaceae, OLEASTER FAMILY 2b. Leaves not covered by peltate scales (3) 3a. [2] Leaves and branches opposite (4) 3b. Leaves and branches alternate or scattered (16) 4a. [3] Fruit a samara (5) 4b. Fruit otherwise (or fruits not present) (6) 5a. [4] Leaves pinnately veined and pinnately compound, with a leathery texture.

Viscaceae, MISTLETOE FAMILY 2b. Threadlike orange or yellow plants attached by suckers to aerial parts of herbs. Cuscutaceae, DODDER FAMILY 3a. Flowers actinomorphic, in a spikelike erect or nodding raceme. Monotropacea, PINESAP FAMILY 3b. Flowers zygomorphic (4) 4a. Flowers tubular, the petals united; ovary superior. Orobanchaceae, BROOM-RAPE FAMILY 4b. Flowers with separate petals; ovary inferior. Orchidaceae, ORCHID FAMILY KEY B. AQUATICS 1a. Plants usually not more than 1 cm long, free-floating or submerged, with no attachment whatever (2) 1b.

Leaves minute (less than 5 mm long), scalelike, overlapping, and appressed to the stem. Tamaricaceae, TAMARISK FAMILY 1b. Leaves larger and otherwise not as above (2) 2a. [1] Leaves covered by silvery or brownish peltate scales. Elaeagnaceae, OLEASTER FAMILY 2b. Leaves not covered by peltate scales (3) 3a. [2] Leaves and branches opposite (4) 3b. Leaves and branches alternate or scattered (16) 4a. [3] Fruit a samara (5) 4b. Fruit otherwise (or fruits not present) (6) 5a. [4] Leaves pinnately veined and pinnately compound, with a leathery texture.

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