. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. I iiPi. PLATE XCIX. STAGHORN SUMACH 1. Branch with a flower panicle and mature leaves, x J. 'J. A staminate flower, enlarged. ."{. A pistillate flower, enlarged. 4. All erect cone-like fruit cluhter, x J. â 'â¢. A single luiiry fruit, enlarged. U. A hairy winter twig, x J. 7. A bud almost Kurruunde8f-R08r enlarged. 'Br 191 STAGHORN SUMACH Rhus typhina, Linnaeus FORKâA Bhnib or small tree usually reaching a height of 10 20 ft, but may reach a height of 40 ft. with a diameter of 16 inches. Trunk usually short, b
. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. I iiPi. PLATE XCIX. STAGHORN SUMACH 1. Branch with a flower panicle and mature leaves, x J. 'J. A staminate flower, enlarged. ."{. A pistillate flower, enlarged. 4. All erect cone-like fruit cluhter, x J. â 'â¢. A single luiiry fruit, enlarged. U. A hairy winter twig, x J. 7. A bud almost Kurruunde8f-R08r enlarged. 'Br 191 STAGHORN SUMACH Rhus typhina, Linnaeus FORKâA Bhnib or small tree usually reaching a height of 10 20 ft, but may reach a height of 40 ft. with a diameter of 16 inches. Trunk usually short, bearing a broad flat-topped crown. Lateral branches are decidedly ascending. BARKâOn old trunks rough, dark brown, sometimes scaly; on younger trunks and branches smooth, thin, somewhat papery, covered with numerous lenticels which later develop into rough dots. Rich in tannin. TWIGBâCovered for 3 years with brown to black velvety pubescence, later smooth, stout, clumsy; If cut or pnnctured exude a milky Juice, which turns black upon exposiu-e. Twigs are often frozen back in winter. They are covered with conspicuous orange-colored lenticels, and contain a large yellowish-brown pith. BUDftâAlternate; terminal bud absent; conical, spherical obtuse, covered with dense rusty haini. LEAVESâAlternate, compound, 16-24 inches long, with stout wingless petiole and 11-31 leaflets. Leaflets oblong, 2-5 inches long, nearly sessile, acute at apex, serrate on margin, rounded or hfnrt-shaped at base; when mature smooth, dark green above, and pale beneath. LEAF-SCARSâAlternate, nearly encircle bud, large, conspicuous. U-shaped, contain scattered bundle-scars sometimes grouped in 3s. FLOWERSâAppear in May or June. Occur in dense yellowlshrgreen panicles. Staminate panicles are about 8-12 inches long and 6-6 inches broad. Pistillate panicles are only 5-8 inches long but more compact. FRUITâArranged in compact, erect, cone-like, red clusters which are 5-8 inchea long, 2-8 inches broad a
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectforests, bookyear1901
