PINACEAE. 7 



1. L. decurrens Torr. Mostly a rather small tree with bright 

 cinnamon-red bark and spreading branches; leaves pale green, 

 4-8 mm. long, the lateral ones without glands, nearly covering the 

 flattened, obscurely pitted inner ones; staminate cones oblong- 

 ovate, 5-6 mm. long; fruiting cones 2 cm. long and about 8 mm. 

 thick; scales with short somewhat recurved mucro; seeds oblong- 

 lanceolate, 8-12 mm. long, the narrow outer wing scarcely longer, 

 the inner broader and nearly equaling the scale. 



Frequent in the coniferous forests of the San Gabriel, San Ber- 

 nardino, San Jacinto and Cuyamaca Mountains. 



5. CUPRESSUS L. Cypress. 



Resinous aromatic trees with fibrous bark, light brown 

 durable and fragrant wood, stout erect or horizontal 

 branches and naked buds. Leaves scale-like, decussate, 

 ovate, acute, acuminate or rounded at the apex. Flowers 

 monoecious, small, terminal on the branchlets; the 

 staminate rounded to oblong, yellowish, with subpeltate 

 scales bearing 3 to 5 subtended pollen sacs; the ovulate 

 green and inconspicuous, the pointed scales spreading 

 and exposing the numerous erect basal ovules. Cones 

 maturing the second year, globose to oblong, the scales 

 much thickened into a shield-shaped apex with a promi- 

 nent central boss or prickle, closely fitting and not 

 overlapping, separating at maturity or remaining closed 

 for years. Seeds small, compressed, acutely angled or 

 margined; cotyledons 2 to 5. 



1. Cupressus guadalupensis S. Wats. (Guadalupe Cypress.) 

 Small tree 10 to 20 ft. high, clothed from the ground with slender 

 ascending branches forming a thin open conical crown; bark of the 

 trunk separating into extremely thin reddish brown scales, exfoli- 

 ating leaving a smooth polished red-brown inner bark, no persistent 

 bark even at the base of the older trees; leaves on slender terete 

 branchlets, light green, acutish, slightly keeled at the tip, furnished 

 with a dorsal pit, but not resinous-glandular; staminate flowers 

 oblong, with 3 lateral anthers in each row; cones globose, 20-25 

 mm. broad, light brown, becoming gray brown with age; scales 6 

 to 8, with central subconical or more or less appressed and crescent- 

 shaped umbos; seeds reddish brown, sharply angled, obscurely 

 warty, 3 mm. long. 



Several isolated groves are found in western San Diego County, 

 the most accessible being on the Campo road near Tecata Mountain. 

 Another is nearby in Cedar Canyon and a third is near Descanso. 

 It is also in northern Lower California and on Guadalupe Island. 

 The southern California specimens have been referred to goveniana. 

 but the bark is unlike that species or any other Californian cypress. 

 It is a handsome tree and should be substituted in southern Cali- 

 fornia for the less adapted Monterey Cypress. 



