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Key to Juniperus of Central Asia (from Turkmenistan/Iran through the former Soviet rev. 2/2011 Union, Pakistan and the Western Himalayas, including Nepal)
 

Summary: Key to Juniperus of Central Asia (from Turkmenistan/Iran through the former Soviet rev. 2/2011
Union, Pakistan and the Western Himalayas, including Nepal)
1a. All leaves acicular (subulate, jointed at the base), in whorls of 3, cones borne axillary (section
Juniperus) seed cones 6-15 mm, blue to bluish-black when mature (2 - 3 yrs), seeds free,
male cones solitary, axillary, leaves with one (rarely divided by a faint midrib) broad
stomatiferous band above (adaxial, closest to the stem).........................................J. communis
1b. Leaves decurrent (not subulate, not jointed at the base), both scale-like and whip (decurrent
with free tips) leaves, only whip-leaves on juvenile plants and at the tips of adult foliage,
leaves in pairs or whorls of 3, cones borne terminal (section Sabina)
2a. 2 - 6 (-8) seeds per cone, seed cones globose or bi-lobed (multi-seeded junipers)
3a. (1-) 2 seeds per globose cone or 2-3 (-4) seeds per bi-lobed cone
4a. Seed cones 4 - 6 mm when mature, irregularly globose, (1-) 2 seeds per cone,
shrubs...........................................................................................................................J. sabina
4b. Seed cones 6 - 9 mm, bi-lobed (occasionally globose on the same tree), 2 - 3 (-4)
seeds, trees with strong central axis
5a. Scale-leaves mostly flat, scarcely overlapping, giving the ultimate branchlets a
smooth appearance, glands on whip-leaves not conspicuous, not generally raised..
........................................................................................................................J. semiglobosa
5b. Scale-leaves beaked, overlapping by about 1/4, giving the ultimate branchlets a
rough appearance, glands on whip-leaves conspicuous, generally raised..

  

Source: Adams, Robert P. - Department of Biology, Baylor University

 

Collections: Biology and Medicine