Proceedings of the California Academy of Sciences 2
Proceedings of the California Academy of Sciences 2
California Academy of Sciences
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Bursera pttbescens Watson, Proc. Am. Acad., xxiv, 44. Dioecious, arborescent, 10-25 feet in height, 1-2 feet in diameter, with low tortuous widely- spreading branches: leaves, pedicels, peduncles and young shoots appressed-pubescent, upper surface of the leaves only sparsely so: leaves fascicled, imparipinnate, 1-3 inches long, with 1-7 pairs of sessile leaflets, entire or variously lobed, the upper ones often confluent with the 3-7 lobed terminal one : panicles axillary and more or less termin...al, compound, often ample, when in full bloom completely covering the neai'ly, at that time, leafless tree: inflorescence short-hirsute, flowers 4 mm. long: sepals 5, concave, val- vate: petals twice as long as the sepals, ovate-acute, some- what accrescent, conduplicate, keeled by the strong mid- nerve: stamens of the female flower minute, abortive: styles 3, capitate, indistinctly so in the male flower: ovary ob- lique, flattened, pubescent; half-grown fruit red, nearly equaling the petals: disk of five separate lobes', sometimes crenate or deeply bilobed, sometimes oblong, entire, with 10 stamens alternately inserted in front and in the sinus, or ten-crenate with all the stamens inserted into the intervals: aestivation quincuncial.
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