10. Hicoria Borealis Ashe. Northern Hickory

Fig. 1432

Hicoria borealis Ashe, Notes on Hickories. 1896.

A small tree, with rough furrowed bark when young, becoming shaggy in long narrow strips with age. Bud-scales 8-10, imbricated, the inner bright-colored and sericeous, enlarging in leafing and tardily deciduous; terminal bud ovate-lanceolate, 1/3' long; twigs very slender, i' thick, glabrous, bright brownish red; staminate aments in 3's at base of shoots of season; bract of staminate calyx much prolonged; young foliage blackening in drying, pubescent when young, becoming smooth, ciliate, with few resinous globules on lower surface; leaflets 5, occasionally 3, lanceolate, the upper 3/4'-1 1/4' wide, 3i'-6' long; lower pair often smaller; fruit ovoid, much flattened, 3/4' or more long; husk very thin, rugose, coriaceous, usually not splitting; nut white, some-what angled; shell thin and elastic; seed large, sweet and edible.

A small tree of dry uplands, growing with oaks and Hicoria microcarpa of which it is, perhaps, a northern race. Southern and eastern Michigan, east to Belle Isle, Detroit river.

10 Hicoria Borealis Ashe Northern Hickory 1432

11. Hicoria Glabra (Mill.) Britton. Pig-Nut Hickory

Fig. 1433

Juglans glabra Mill. Gard. Dict. Ed. 8, No. 5. 1768. Carya porcina Nutt. Gen. 2: 222. 1818. Hicoria glabra Britton, Bull. Torr. Club 15: 284. 1888. H. glabra hirsuta Ashe, Notes on Hickories. 1896.

A tree, sometimes 1200 high and with a trunk diameter of 50, bark close, rough; foliage glabrous, or somewhat pubescent. Bud-scales 8-10, imbricated, the inner ones enlarging; leaflets 3-7, rarely 9, oblong, oblong-lanceolate or the upper obovate, sessile, acuminate at the apex, mostly narrowed at the base, 3'-6' long, in young plants much larger; staminate aments glabrous, peduncled in 3's; lobes of the staminate calyx about equal in length, the bract narrower; fruit obovoid or obovoid-oblong, 1 1/2'-2' long; husk thin, the valves very tardily dehiscent; nut brown, angled, pointed, very thick-shelled; seed astringent and bitter, not edible.

In dry or moist woods, Maine to southern Ontario and Minnesota, south to Florida and Texas. Wood hard, strong, tough, rather dark brown; weight per cubic foot 51 lbs. Brown, red, white or black hickory. Broom-hickory. May-June. Fruit ripe Oct.-Nov.

11 Hicoria Glabra Mill Britton Pig Nut Hickory 143311 Hicoria Glabra Mill Britton Pig Nut Hickory 1434

12. Hicoria Villosa (Sarg.) Ashe. Scurfy Hickory. Woolly Pignut

Fig. 1434

H. glabra var. villosa Sarg. Sylva 7: 167. 1895. H. villosa Ashe, Bull. Torr. Club 24: 11, 530. 1807.

A small or medium sized tree reaching a maximum height of about 8o°, and a diameter of 20, with deeply furrowed dark gray bark. Buds of 6-8 imbricated scales, the outer usually thickly dotted with resinous globules, the inner somewhat enlarging in leafing; terminal bud ovate, i' long, lateral buds mostly short-stiped; stami-nate aments pubescent, and gland and scurf covered, peduncled in 3's at base of shoots of the season; twigs slender, 1/6 thick or less, usually glabrous, bright purple-brown; petiole pubescent; leaflets 5-9, at first thickly covered beneath with silvery peltate glands, mixed with resinous globules, generally pubescent; fruit about 1' long, obovoid or subglobose, the husk dotted with resinous globules, 5' thick and partly splitting; nut thick-shelled, angled; seed small, but sweet.

Sandy or rocky soils, Delaware to Georgia and Missouri. Wood hard, dark brown; weight per cubic foot 50 lbs. Perhaps a race of the preceding.