pinus- pinaceae

Pinaceae : umbo-thickened portion of the cone scale that is exposed before the mature cone opens. Apophysis– umbo formed into woody pyramid Serotinous– closed cone scales/open when resin is melted or heated by fire LARGEST family of gymnosperms GENUS PINUS Most important timber-producing genus -subgenuses- pinus (yellow pines)                      – strobus (white pines) PINUS– yellow pines or hard pines             – Scales with a sealing band adjacent to apophysis             – Two leaf vascular bundles             – Fascicles with 2-5 needles Strobus– cone scales with a sealing band             – Fascicles with 1-5 fascicles

20 cards   |   Total Attempts: 182
  

Cards In This Set

Front Back
Question 1
Name
Pinus coulteri – variable serotiny – 3 needles per bundle – 6 to 12 inches sheath persistent CONES– heaviest in world – Oblong to egg shaped – 10 to 14 inches BIG – Tan/yellow color – Cone scales with large flat claws
Question 2
Name
Pinus coulteri – variable serotiny – 3 needles per bundle – 6 to 12 inches sheath persistent CONES– heaviest in world – Oblong to egg shaped – 10 to 14 inches BIG – Tan/yellow color – Cone scales with large flat claws
Question 3
Name
Pinus coulteri – variable serotiny – 3 needles per bundle – 6 to 12 inches sheath persistent CONES– heaviest in world – Oblong to egg shaped – 10 to 14 inches BIG – Tan/yellow color – Cone scales with large flat claws
Question 4
Name
Pinus ponderosa – valuable for pine – intolerant resistant to fire (thick bark) – 3 per bundle at 4 to 11 inches long – CONE-symmetrical – Egg shaped to conical – 3-6 1/2 inches long Prickles outward PRICKLY PONDEROSA
Question 5
Name
Pinus ponderosa – valuable for pine – intolerant resistant to fire (thick bark) – 3 per bundle at 4 to 11 inches long – CONE-symmetrical – Egg shaped to conical – 3-6 1/2 inches long Prickles outward PRICKLY PONDEROSA
Question 6
Name
Pinus torreyana – occurs only in 1 area <9000 east – rare in occurrence with low genetic diversity – 5 per bundle, 6 to 10 inches long. Tolerant! CONES– egg shaped to spherical – Persistent weakly serotinous – Scales with pyramid like structure
Question 7
Name
Pinus torreyana – occurs only in 1 area <9000 east – rare in occurrence with low genetic diversity – 5 per bundle, 6 to 10 inches long. Tolerant! CONES– egg shaped to spherical – Persistent weakly serotinous – Scales with pyramid like structure
Question 8
Name
Pinus sabiniana – VERY intolerant – fire dependent – 3 per bundle 7-17 inches flexible – gray tint from distance CONES– like coulter pine – 6-10” long – Variably serotinous
Question 9
Name
Pinus sabiniana – VERY intolerant – fire dependent – 3 per bundle 7-17 inches flexible – gray tint from distance CONES– like coulter pine – 6-10” long – Variably serotinous
Question 10
Name
Pinus jeffreyi – luber, fire resistant – susceptible to ozone – 3 per bundle 71/2 inches long to 11 inches CONE– egg to cylindrical – 5-10” prickle turned down GENTLE JEFFREY
Question 11
Name
Pinus jeffreyi – luber, fire resistant – susceptible to ozone – 3 per bundle 71/2 inches long to 11 inches CONE– egg to cylindrical – 5-10” prickle turned down GENTLE JEFFREY
Question 12
Name
Pinus attenuata -hybridizes with pinus radiata in sc county -3 needles per bundle (3 to 6 inches) CONE-pyramidal – Assymetrical – Elongated and recurved – Groups 3 to 5 – Basals– scabs on upperside knobby SIMILAR to radiata. He will not just give foliage, cones too
Question 13
Name
Pinus attenuata -hybridizes with pinus radiata in sc county -3 needles per bundle (3 to 6 inches) CONE-pyramidal – Assymetrical – Elongated and recurved – Groups 3 to 5 – Basals– scabs on upperside knobby SIMILAR to radiata. He will not just give foliage, cones too
Question 14
Name
Pinus attenuata -hybridizes with pinus radiata in sc county -3 needles per bundle (3 to 6 inches) CONE-pyramidal – Assymetrical – Elongated and recurved – Groups 3 to 5 – Basals– scabs on upperside knobby SIMILAR to radiata. He will not just give foliage, cones too
Question 15
Name
Pinus radiata -3 per bundle some 2’s -4 to 6 inches persistent CONE-assymetrical egg shape – Prickles on scales – Pronounced round knobs on upper side – Not serotinous *MOST widely planted pine outside its range worldwide