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Cuatrecasanthus kingii H. Rob. & V. A. Funk

Description

Phytokeys (archived) tarafından sağlandı
Shrubs to 1 m tall, bases erect or decumbent to rhizomate; stems densely lanulate with tawny mostly single-celled trichomes. Leaves with petioles 0.8–2.0 cm long; blades ovate to elliptical, mostly 3.5–8.5 cm long, 2–3 cm wide; base acuminate, apex short-acuminate, margins appearing entire, narrowly recurved, with incurved teeth distally, adaxial surface dark, epidermal cells often paler in area along veins, surface plane or with slightly insculpate veins, densely hispidulous with stiff trichome bases, abaxial surface densely lanulate to sericeous with tawny trichomes, at surface with dense white cover of myceliumiiform stellate trichomes; secondary veins ca. 5 or 6 on each side of midvein, spreading at base at 45–50° angles, curved and more strongly ascending near margins. Inflorescence distinctly exceeding reduced distal leaves, with few long ascending branches; branches tomentellous with dark hairs. Heads sessile and with up to 12 clustered in dense ultimate glomerules, up to 10 mm tall, ca. 2 mm wide; involucre cylindrical or narrowed distally and fusiform, bracts brown, ca. 16 in ca. 5 series, short-ovate to oblong elliptical, 2.0–5.5 mm long, 1.0–1.5 mm wide, apices short-acute, slightly darkened distally, sometimes with reddish median line, scarious, glabrous outside. Florets with corollas possibly pale lavender, ca. 6.5 mm long, with numerous glandular dots on basal tube and few on tips of lobes, tips of lobes paucipilosulous, tube ca. 2.5 mm long, lobes ca. 4 mm long; anther thecae ca. 2.5 mm long. Achenes ca. 2.5 mm long; pappus white, of ca. 50 capillary bristles ca. 6.5 mm long, not or scarcely broadened toward tips. Pollen grains 35–42 µm in diam.
lisans
cc-by-3.0
telif hakkı
Harold Robinson, Vicki A. Funk
bibliyografik atıf
Robinson H, Funk V (2012) Cuatrecasanthus (Vernonieae, Compositae): A revision of a north-central Andean genus PhytoKeys 14: 23–41
yazar
Harold Robinson
yazar
Vicki A. Funk