. North American trees : being descriptions and illustrations of the trees growing independently of cultivation in North America, north of Mexico and the West Indies . Trees. Gregg's Ash 8ii 21. FRINGE-FLOWERED ASH — Frarinus dipetala Hooker and Arnott A Califomian shrub, not definitely known to form a tree, with spreading stems 4 meters long or less. It ranges from central California southward along the mountains to Lower Cali- fornia. The young twigs are somewhat 4-sided, and smooth. The leaves are smooth, or very minutely hairy when they first appear, and have from 3 to 9 long-stalked leafl
. North American trees : being descriptions and illustrations of the trees growing independently of cultivation in North America, north of Mexico and the West Indies . Trees. Gregg's Ash 8ii 21. FRINGE-FLOWERED ASH — Frarinus dipetala Hooker and Arnott A Califomian shrub, not definitely known to form a tree, with spreading stems 4 meters long or less. It ranges from central California southward along the mountains to Lower Cali- fornia. The young twigs are somewhat 4-sided, and smooth. The leaves are smooth, or very minutely hairy when they first appear, and have from 3 to 9 long-stalked leaflets, which are oval, oblong or oblong-obovate, blunt or pointed, to 6 cm. long, 5 to 25 mm. wide, thick, dark green above, rather paler beneath. The flowers are borne in large panicles at the leaf scars of the previous season and are perfect, or rarely polygamous; they have a slightly 4-toothed calyx and 2 white, oblong-obovate blimt petals with short claws; the 2 stamens are about as long as the petals, with slender filaments. The samaras are oblong to oblong-spatulate, 2 to 3 cm. long, 5 to 8 mm. wide, the very flat seed-bearing part striate, the thin, blunt, or notched wing decurrent on its edges to about the middle. 22. GREGG'S ASH—Fraxmus Greggii A. Gray Gregg's ash is a very interesting little tree or large shrub of southwestern Texas and northern Mexico. It attains a maximum height of about 8 meters, when its trunk is about 2 dm. thick. The bark is thin, gray and scaly. The young twigs are round and minutely hairy, but soon become smooth and gray. The peculiar leaves have the petiole and rachis narrowly wing-mar- gined ; the 3 to 7 strictly sessile, small leaflets are spatulate to ojjlong-obovate, smooth, rather blunt, thick, dark green above, paler and minutely pitted (under a lens) beneath, entire-margined, or few- toothed above the middle, i to cm. long, 3 to 6 mm. wide, more or less wedge-shaped at the base. The flowers have not yet been obtained by botan
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