Anthurium aylwardianum Croat

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Nomenclature

Family: Araceae

Genus: Anthurium

Species:

Anthurium aylwardianum Croat

Usage:

accepted

Page number:

Etymology:

The species is named in honor of Volunteer Researcher, Steve Aylward, of the Missouri Botanical Garden. Steve regularly keys out undetermined plants to find out if they are likely to be new, just as he did in the case of this specimen which proved to be a new species. Through Steve's efforts, we have isolated and determined many species, a great number have proved to be new to science, including this one being named in his honor. Steve volunteers about 20 hours each week and his skills as a former Latin teacher are also helpful to our research program.

WCM Protologue Reference:

Aroideana 34: 47 (2011)

Type information:

PERU. Huanuco: Leoncio Prado Province, Distrito Padra Abad, along road from Tingo Maria to Pucalpa, 2.4 krn N of San Isidro, 09°13'18"S, 75°49'40''W, 891 m, 3 June 1998, T. B. Croat & M. Sizemore 81671 (holotype, MO-04951780; isotypes, K, US, USM).

SUMMARY

Terrestrial on steep bank; internodes short, 3.5 cm diam., dark green; cataphylls deciduous except for a few short pale fibers which persist; cataphyll scars conspicuously raised; petioles 47-56 cm long, subterete, obtusely flattened and sulcate adaxially, faintly ridged (3-5) on either side toward upper edge, dark green, matte, drying matte, greenish yellow-brown; geniculum much thicker, narrowly and obtusely sulcate; blade ovate-sagittate, 32-43.5 cm long, 23.2-39 cm wide, subcoriaceous, dark green and subvelvety-matte above, moderately paler and matte below, drying medium dark brown and matte above, slightly paler and weakly glossy and yellowish brown below; anterior lobe 22.5-30.2 cm long, weakly concave along most of its margin, broadly rounded near apex and abruptly, narrow-acuminate; posterior lobes 12.5-20 cm long, 8-14.5 cm wide; basal veins 7(-8) pairs, 1st pair free to base, 2nd pair fused 1.3-1.8 cm, 3rd pair fused 3.5-3.7 cm, 4th & 5th pairs fused 5-5.3 cm; sinus parabolic, 9-12.5 cm deep, 8.5-10 cm wide; midrib bluntly acute and paler above, narrowly convex and darker below, drying bluntly acute and concolorous above, subtriangular with a medial rib and convex, finely ribbed sides, minutely and sparsely granular; primary lateral veins 7-9 on each side, narrowly raised and more or less concolorous above, narrowly raised and paler below, drying narrowly rounded to bluntly acute, slightly paler, minutely granular on magnification above, narrowly acute and slightly darker, minutely granular on magnification below; secondary veins raised; tertiary veins in part moderately raised below; collective veins arising from one of the lowermost primary lateral veins or the 1 st or 2nd pair of basal veins, 2-4 mm from margin, moderately loop-connecting the primary lateral veins; upper surface drying moderately smooth; lower surface densely and minutely dark granular-speckled. INFLORESCENCE erect; peduncles terete, 22 cm long matte; spathe erect-spreading, 14 cm long, 2 cm wide, medium green; stipe ca. 7 cm long; spadix long-stipitate (stipe ca. 7 cm long) 20 cm long, drying ca. 6 mm diam., dark green and weakly glossy, smooth.

Source:

New Species of Anthurium (Araceae) from South America

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Araceae

Anthurium aylwardianum Croat

Primary tabs

Nomenclature

SUMMARY