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Project Name Data (Last Modified On 6/19/2013)
 

Flora Data (Last Modified On 6/19/2013)
Species Chrysanthemum leucanthemum L.
PlaceOfPublication Sp. P1. 888. 1753.
Synonym Leucanthemum vulgare Lam., Fl. Francoise 2: 137. 1778. Based on Chrysanthemum leucanthemum L.
Description Glabrate, branched, aromatic perennial herb to 1 mn tall, densely leafy; stems soft, stout, glabrous, slightly striate. Basal leaves spatulate, to 15 cm long, the lower half narrowed into a slender winged petiole, prominently serrate upwards, callose margined; cauline leaves lanceolate, to 10 cm long, remotely denticulate or entire, sessile and somewhat clasping at the base, callose margined, glabrous or apically sparingly pubescent. Heads radiate, showy, solitary, 5-9 cm across with white ray and yellow disc florets, sometimes with one or two slender subinvolucral bracts; involucral bracts herbaceous in ca. 3 imbricate series, narrowly deltoid to oblong, ca. 10 mm long with broad, brownish, erose, hyaline margins, glabrous; receptacle convex; ray florets 20-30 in apparently 1 series, ligules 3 cm long, 5 mm broad, apically denticulate, drying with longitudinal brown lines, the tube 1-2 mm long, the style white, included, the branches colored, exserted, with a prominent, ventral groove and an expanded, truncate, flat, short-fringed apex, the ovary ca. 2 mm long, glabrous, dorsiventrally flattened, deeply 10-sulcate, the pappus an interrupted ring of scales; disc florets numerous, ca. 6 mm long, the corolla not differentiated into tube and limb, 4 mm long, obconical, apically 5-dentate, the anthers 2 mm long, basally truncate, the appendages obtuse or deltoid, the ovary 2 mm long, resembling that of the ray florets but less compressed, the style branches like those of the ray florets but the apical fringe much larger. Achene black, compressed, with conspicuously contrasting ribs, glabrous; pappus of irregular scales or wanting.
Habit herb
Note This species is distinguished by its large showy flowers and aromatic foliage. It is grown for ornament in upland Chiriqui and sometimes offered for sale as cut flowers in lowland markets. It is a native of the Old World. "Marguarita."
Common Marguarita
Specimen CHJRIQUi: Nursery in Boquete, D'Arcy & D'Arcy 6506 (MO), 6508 (K, MO, PMA).
 
 
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