Handbook of practical botany for the botanical laboratory and private student (1908)
Strasburger, Eduard, 1844-1912, Hillhouse, William, 1850-1910 · London, S. Sonnenschein; New York, Macmillan · leaf 405
lowers also, like the short shoots, stand in the axils of scale-leaves or bracts. Upon the stalk of the male flowers, we findfirst three decussating pairs of bracts. The lowermost pair isplaced laterally with regard to the primary bract and the parentaxis, an arrangement which is due to the… … ■■<&-. ^^^v i^^ki^ Fig. lS4:.—Pinus Pu77nlio,vesemh\ing p. sylvestris. D, from P. sylvestris. A,longitudinal section through a nearly ripe male flower (x 10). B, longitudinal sectionthrough a single staminal leaf (x 20). G, cross-section through a staminal leaf(x 27). D, a ripe pollen-grain…
Botany · Plant physiology · Microscopy
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