. Bulletin (Pennsylvania Department of Forests and Waters), no. 33-35. Forests and forestry. 84 BASSWOODS,—TILIA, (Tourn.) L. Trees nnth heart-shaped, serrnte, 2-rankt, ohlique leaves. Buds nnsiimmetrieal; terminal absent. Inner hark very strong flbrous. Flowers 5-part, perfect, cream-colored, borne in drooping elusters attached beneath a narrow leafy bract which serves seeds as a helicopter. Seeds globose, tcoody, mit-like, indehiscent, containing 1 or 2 embryos. Occur on fertile, well-drained soils. (Fig, 25). Figure 25 1? ASS WOOD, 1. T\vig. 2. leaves showing size variation, with upix'r and
. Bulletin (Pennsylvania Department of Forests and Waters), no. 33-35. Forests and forestry. 84 BASSWOODS,—TILIA, (Tourn.) L. Trees nnth heart-shaped, serrnte, 2-rankt, ohlique leaves. Buds nnsiimmetrieal; terminal absent. Inner hark very strong flbrous. Flowers 5-part, perfect, cream-colored, borne in drooping elusters attached beneath a narrow leafy bract which serves seeds as a helicopter. Seeds globose, tcoody, mit-like, indehiscent, containing 1 or 2 embryos. Occur on fertile, well-drained soils. (Fig, 25). Figure 25 1? ASS WOOD, 1. T\vig. 2. leaves showing size variation, with upix'r and lower leaf surfaces. 8, Bract with ap- pended fruit cluster. Flowering Dogwood. 4, Leaves showing upper and lower surfaces. 5. Twig with typical branching and prominent flower buds. 0. Fruit cluster. 7, Twig with vegetative terminal bud, fruit cluster, and flower bud 209. Basswoods,—Tilia americana, L, Twigs bright red. Bark olivaceous to gray; scaly-ridged on old trunks. Bvds usually show 3 risible scales. Leaves have rusty hairs beneath in axils of veins; bases oblique. 85 210. White Basswood,—Tilia heterophylla, Vent. Is like sometvhat larger relative, but has slightly larger leaves, silvery white and fine-downy beneath. 211. *European Broadleaf Linden,—Tilia grandi- folia, Ehrh. Like American basswood but hairy on ribs and sometimes whole underside of leaves; fruit is thicker-shelled and 4- or 5-ribbed; leaves near-symmetrical. Native to Europe. 212. *European Small-leaf Linden—Tilia parvi- folia, Ehrh. Is a commoner ornamental than its larger relative, com- pared to which it is smaller in every way. , , . Leaves cordate, silvery beneath; tufts of rusty hairs in axils of veins. Fruit globose, thin-shelled. Native to Euroi)e. 213. Shrubby St. John's Wort—Hypericum pro- lificum, L. Twigs fine; buds small, opposite. Brown, 3-part, many seeded capsules persist. Leaves »imple, entire; average 2" long, often with smaller arillary ones; translucnit-dotted, nairo
Size: 1952px × 1281px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectforests, bookyear1923
