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, bargains an entire, authoritative connection with the crops of Colorado. It discusses plant geography, specified botanical positive factors of the mountain levels, basins and plains, and clarify simple terminology. fascinating anecdotes and introductions are given for every plant kin, and tricks on recognising the most important households are supplied in addition. each one quantity encompasses a whole thesaurus, indices to universal and particular names, and 1000's of illustrations. This and its spouse quantity, were considered as the main entire publications to be had and are necessary to readers drawn to Colorado's vegetation.

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Primulaceae, PRIMROSE FAMILY 7b. Stamens alternate to the petals or fewer; ovary more than 1-loculed, or, if 1-loculed, then the placenta rarely basal or free-central (8) 8a. [7] Ovary 4-lobed, developing into 4 (or by abortion fewer), 1-seeded nutlets . (9) 8b. Ovary not 4-lobed; fruit a capsule or berry, usually several-seeded (11) 9a. Prostrate, dichotomously branched annual of sand dunes, with small (2-5 mm), ovate leaves mostly at the joints; flowers minute, white. Ehretiaceae 9b. Not as above (10) 10a.

7] Ovary 4-lobed, developing into 4 (or by abortion fewer), 1-seeded nutlets . (9) 8b. Ovary not 4-lobed; fruit a capsule or berry, usually several-seeded (11) 9a. Prostrate, dichotomously branched annual of sand dunes, with small (2-5 mm), ovate leaves mostly at the joints; flowers minute, white. Ehretiaceae 9b. Not as above (10) 10a. [9] Leaves alternate; stem not square in cross-section; not aromatic. Boraginaceae, BORAGE FAMILY 10b. Leaves opposite; stems square in cross-section. Lamiaceae, MINT FAMILY 11a.

37] Plants only weakly woody; flowers with white, yellow, or pink tepals. Eriogonum, in Polygoaceae, KNOTWEED FAMILY 39b. Plants clearly shrubs or trees (40) 40a. [39] Leaf buds (in the leaf axils) with a single covering scale; leaves from narrowly linear to broadly lanceolate or elliptic. Salix, in Salicaceae, WILLOW FAMILY 40b. Not as above (41) Page 9 41a. [40] Petiole usually flattened perpendicular to the leaf face; leaves deltoid-serrate, evenly serrate or crenulate. Populus, in Salicaceae, WILLOW FAMILY 41b.

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