Colorado Flora by William A. Weber, Ronald C. Wittmann

By William A. Weber, Ronald C. Wittmann

This consultant, meant either for the scholar and scientist, deals an entire, authoritative connection with the vegetation of Colorado. It discusses plant geography, unique botanical positive factors of the mountain levels, basins and plains, and clarify uncomplicated terminology. fascinating anecdotes and introductions are given for every plant relations, and tricks on recognising the most important households are supplied to boot. every one quantity features a entire word list, indices to universal and particular names, and countless numbers of illustrations. This and its better half quantity, were considered as the main entire courses to be had and are necessary to readers attracted to Colorado's plants.

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Simaroubaceae, QUASSIA FAMILY 25a. [19] Stems with thorns or spines (26) 25b. Stems spineless (34) 26a. [25] Thorns often more than 1 cm long, formed by modification of whole branchlets (27) 26b. Thorns shorter, formed at the nodes (modified leaves or stipules) (31) 27a. [26] Leaves linear, often somewhat thick and succulent (28) 27b. Leaves not succulent, broader (29) 28a. [27] Rigid, short-branched, dense, low shrub less than 1 m tall, with narrowly oblong, pale green leaves, the older branches rigid, thornlike; flowers small, greenish, with petals and sepals.

Payson, Edwin Blake, 1893-1927, promising student of Cockerell and Nelson, collected extensively from his father's cattle ranch at Naturita. A brilliant botanist, specialized in Brassicaceae and Boraginaceae. Penland, C. , 1899-1982, professor at Colorado College, avid alpine botanist, discovered many rare alpine species on Hoosier Pass, specialized in Penstemon. , 1886-1952, Pennsylvania botanist, specialized in the Scrophulariaceae of the Rocky Mountain region. , 1822-1901, professor at Lafayette College, Pennsylvania, collected with the Hayden Survey and published the first Colorado Flora in 1874.

Carpels not enclosed in the calyx; leaves lacking stipules; flowers not in a dense head (13) 13a. [12] Carpels consisting of dehiscent, several-seeded follicles (in Actaea a berry). Helleboraceae, HELLEBORE FAMILY 13b. Carpels consisting of 1-seeded indehiscent achenes. Ranunculaceae, BUTTERCUP FAMILY 14a. [10] Ovary with 2 or more locules (15) 14b. Ovary with 1 locule (19) 15a. [14] Plants with milky juice. Euphorbiaceae, SPURGE FAMILY 15b. Plants without milky juice (16) 16a. [15] Flowers unisexual; ovary on a stalk (in this group the flowers are reduced to single stamens on single gynoecia, but the stamens and gynoecium are surrounded by a cuplike involucre that resembles a perianth).

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