Callitris arenosa, A. Cunn.2) (Frenela robusta, A. Cunn. var. microcarpa, Benth.; F. Moorei, Parlat.; F. arenosa, A. Cunn.; F. microcarpa, A. Cunn.; F. columellaris, F. v. M.) occurs in isolated spots in New South Wales, also in Queensland. Like many other species of Callitris, it is known as cypress pine.
The oil from the leaves, obtained with a yield of from 0,249 p.c. (in January) to 0,402 p.c. (in September), had the following constants d23o 0,8491; aD + 35,8°; nD28o 1,4760; and d26o 0,8452; aD + 18,9°; nD26o 1,4764. It is colored a light lemon yellow and does not dissolve in 10 vols, of 90 p.c. alcohol. Upon fractionation it was shown to consist of about 85 p.c. d- and /-limonene and dipentene. After fractional crystallization of the tetrabromide, its melting point was 115 to 116° and 121 to 122°. In late summer the oil contains more /-limonene than in winter, an observation that has also been made in connection with other species of Callitris. In addition the oil appears to contain small amounts of bornyl and geranyl acetate.