Citation: L., Sp. Pl. 1000 (1753).

Derivation: The Latin name for a pine.

Synonymy: Not Applicable

Common name: Pines.

Description:
Resinous trees; leaves in groups of 2 or a few on short shoots, needle-like; monoecious.

Cones with numerous spirally arranged scales; male cones lateral, cone scales each with 2 sporangia on the upper surface; female cones terminal, persistent and becoming woody; cotyledons several.

Distribution:  At least 70 species in the Northern Hemisphere. (W. Dallimore & A. B. Jackson (1966) A handbook of Coniferae and Ginkgoaceae.) Distribution stated for the species treated here is for the very few specimens in AD, and is likely to be very inadequately recorded.

Biology: No text

Key to Species:

1. Leaves in threes
2. Leaves 8-15 cm long, grass-green; cones asymmetrical, ovoid	P. radiata 5.
2. Leaves 12-25 cm long, dark-green; cones symmetrical, .oblong to ovoid	P. ponderosa 4.
1. Leaves in pairs
3. Leaves greyish-green, 5-8 cm long; winter buds c. 8 mm long	P. halepensis 1.
3. Leaves dark-green, more than 10 cm long; winter buds 12-25 mm long
4. Leaves more than 15 cm long; cones bright-brown; scales of winter buds recurved	P. pinaster 3.
4. Leaves less than 15 cm long; cones yellowish-brown; scales of winter buds appressed	P. nigra 2.

Author: Not yet available