Sp. Pl. 2: 907. 1753. Lowell E. Urbatsch, Patricia B. Cox Common names: Black-eyed Susan Endemic Treatment appears in FNA Volume 21. Treatment on page
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glabrous or lightly scurfy-puberulent; inner lanceolate, faces often lightly black-villous on margins (midveins often purple-lined, thickened). Florets 5–200;
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lance-linear to lanceovate [rounded-deltate] (often hairy). Cypselae (brown to black) narrowly cylindric to obovoid or clavate (faces glabrous or pilosulous,
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absent; parenchyma not mucilaginous; druses in pith and cortex abundant but nearly microscopic; pith 1/2 of lesser stem diam.; medullary vascular system absent
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above. Caryopses planoconvex, ovoid, or nearly orbicular; embryo about M as long as the caryopses; hila oblong to nearly round, x = 9. Puerto Rico, Virgin Islands
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opaquely white, commonly with dark stripe on underside, often with contrasting black or brown spines in same areoles (rarely all brown or all white), aging gray;
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pinkish, 1–3 mm. Fruits indehiscent, white to pinkish [to purple], clavate to nearly cylindric, 11–25 × (2–) 4–5 mm, weakly succulent, quickly drying and contracting
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2-fid nearly entire length. Capsules green, depressed-globose to ellipsoid, 2.8–3.2 × 4–4.5 mm, 3-lobed, glabrous; columella 2–2.7 mm. Seeds black to ashy
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hairs, sessile and broadly attached, 0.5–0.6 × 0.5–0.6 mm, opening oblong to nearly circular, densely canescent; appendages petaloid, whitish, hoodlike, incurved
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40–50+), spikelets sessile, narrowly ovoid, 4–5 × 1.8–2.3 mm; scales black or brownish black with pale midribs, elliptic to ovate, 1.6–2.8 mm, ending in terete
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long as wide, pyramidal. Flowers: petals acute to obtuse at apex; stigma nearly sessile, 0.7-1.2 mm diam. during anthesis, much narrower than ovary. Berries
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Acad. Nat. Sci. Philadelphia 12: 444. 1860. Donald E. Stone Common names: Black hickory Endemic Synonyms: Carya arkansana Sargent Carya buckleyi Durand Carya
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club-shaped; petals 2, triangular, nearly equal, 0.5 mm, ciliate, hairs white, club-shaped; stamens 4; anthers black. Pistillate flowers: sepals 2, gray
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long, with conspicuous nodes and internodes. Culms: fertile ones upright or nearly so; nodes without axillary bulblets. Leaves 4–11 per culm; sheaths of proximal
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5–1.5 mm. Capsules ellipsoidal, 2.6–3 × 2.2–2.8 cm, drupaceous. Seeds black or black mottled with white spots, ellipsoidal, 18–20 × 11–13 mm; caruncle rudimentary
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axillary, terminating stems and branches. Bracteoles becoming black or reddish, sessile or nearly so, venation obscure, ovate-triangular to rhombic-triangular
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sparsely to moderately or densely pilose; bracteoles pale brownish, margins nearly eglandular, minutely short, delicately stipulate-glandular. Flowers 15–18
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yellow-green, deltate, coarsely divided, 13–34 × 15–30 cm. Petiole of sterile leaf black, 22–58 cm, flattened at base; rachis winged, becoming broader toward apex
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gymnostomum and O. obtusifolium), covering entire capsule. Spores isosporous. Nearly worldwide, more common in temperate areas Species ca. 125 (47 in the flora)
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pubescent; pedicel (6–) 9–25 (–30) mm, usually 2+ times longer than bracts. Seeds black, lustrous, (0.9–) 1–1.5 (–1.7) mm, coarsely muricate. Phenology: Flowering
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