Callitris

Ventenat

Dec. Gen. Nov. 10. 1808.

Common names: Cypress-pine
Etymology: Greek callos, beautiful, and treis, three, referring to the beauty of the plants and the three-whorled leaves and cone scales
Treatment appears in FNA Volume 2.

Shrubs or trees evergreen. Branchlets angled or furrowed-cylindrical, variously oriented. Leaves in whorls of 3–5. Adult leaves scalelike, appressed, abaxial surface keeled or rounded, free portion to 1 mm, abaxial glands absent. Pollen cones solitary or in small clusters, with 4–15 whorls of sporophylls, each with 2–4 pollen-sacs. Seed-cones maturing in 1–2 years, of 1–2 sizes, often remaining unopened for many years, ovoid or globose, 1–3.5 cm; scales persistent, in 2 equally inserted whorls of 3 (–4), valvate, rhombic-deltate, basifixed, thick and woody. Seeds 2–9 per scale, round or 3-angled, broadly 1–3-winged; cotyledons 2.

Distribution

North America, Australia, and New Caledonia

Discussion

Species 16 (1 naturalized in the flora).

... more about "Callitris"
rounded +  and keeled +
Richard P. Wunderlin +
Ventenat +
long-lived +
furrowed-cylindrical +  and angled +
inconspicuous +  and undifferentiated +
Cypress-pine +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
globose +  and ovoid +
North America +, Australia +  and and New Caledonia +
Greek callos, beautiful, and treis, three, referring to the beauty of the plants and the three-whorled leaves and cone scales +
decurrent +  and scale-like +
petioled +, sessile +, twisted +  and simple +
whorled +, opposite +, 2-ranked +, arranged +  and alternate +
persisting +
3 (?) +  and 5 (?) +
scale-like +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
spheric;oblong +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Dec. Gen. Nov. +
blake1959a +, garden1957a +, thompson1961a +  and thompson1986a +
fibrous;woody +
peltate +  and complex +
cuneate +  and oblong +
fleshy +  and woody +
overlapping +
persistent +
basifixed +
rhombic-deltate +
1 +  and 2 +
2 +  and 9 +
3-angled +  and round +
Callitris +
Cupressaceae +
flattened +, angled +  and terete +
tree +  and shrub +
2 +, 4 +  and 15 +
asymmetric +  and symmetric +
many +, 1 +  and 2 +