because of low temperatures, especially near the beginning 

 or the end of the growing season. (2) Particles of frozen water 

 or dew (hoarfrost) appearing on the earth's surface at 32 F. 

 or lower. 



Frostless Season 



The period between the last frost in the spring and the 

 first one in the autumn. 



Frost Resistance 



The capability of plants to survive the formation of ice 

 crystals in their tissues. 



Fruit 



The ripe ovary or group of ovaries with any other parts 

 that may be regularly associated with it, e.g., a grain of corn, 

 a gooseberry fruit, an apple pome. 



Frutescent 



Resembling a shrub somewhat. See Fruticose. 



Fruticeta 



Vegetation types consisting of scrub forests. 



Fruticose 



Shrubby, cf. Suffruticose. 



Fruticose Lichen 



A Lichen with a Thallus ten cm. or more tall, e.g., 

 Cladonia rangiferina, the reindeer "moss." 



Fucoid 



Resembling a seaweed, especially Fucus. 



Fugacious 



Refers to a structure that falls or separates early from a 

 plant, e.g., sepals or petals of some flowers. 



Fully Stocked 



Refers to a stand which contains as many trees or as much 



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