Narcissus × richardianus P. Escobar

García, Pedro Escobar, 2019, Two New Hybrid Daffodils (Narcissus, Amaryllidaceae) From Northern Extremadura (Cáceres, Spain), Phytotaxa 403 (4), pp. 293-300 : 295-296

Narcissus × richardianus P. Escobar , sp. hybr. nov. ( Figs. 1D ; 2D 1 , 2 )

= Narcissus triandrus subsp. pallidulus (Graells) Rivas Goday × N. vitekii P. Escobar

Narcissus foliis glaucescentibus , fistulosis; scapo unifloro atque bifloro; flore pedunculato, sulphureo; laciniis acutis, corona urceolata. Habitat in dumosis ad Sierra de Gata prope pagum San Martin de Trevejo, Extremadura borealis.

Type: — SPAIN. Extremadura: San Martín de Trevejo, monte Jálama , 26 April 2018, P. Escobar García 111/2018 (holotype W; isotypes HSS, MA, SALA) .

Perennial bulbose herbs (8) 10–20 cm tall. Leaves 2, 80–220 × 1.5–2.5 mm, erect, keeled, glaucous, glabrous, trapezoidal in cross-section. Scapes (60) 80–150 mm long, cylindrical, hollow, glaucous. Spathe (14) 16–20 mm long, membranous. Flowers solitary or in pairs, sometimes unpleasingly scented; pedicels (9)10–15(18) mm long. Ovary (4)5–7(8) × 3–3.5(4) mm, elliptic, dark green, slightly curved; ratio ovary length/width 1.5–2 at anthesis. Perianth tube (14) 15–16.5 mm long, narrowly conical, widest at tepal insertion point, slightly curved, yellowish green. Tepals 6, (6.5)7–9.5 × 3–4.5 mm, the inner slightly narrower, pale yellow to citrine, elliptical, mucronulate, reflexed but never twisted; 0.4–0.6 times as long as the perianth tube. Corona bowl-shaped, sometimes narrower at mouth, 4–6 × 8–12 mm, 1.5–2.5 times as wide as long, pale yellow to citrine, with a smooth margin. Stamens unequal. Style included in the perianth tube. Fructification not observed.

Examined material (paratypes): — SPAIN. Cáceres : San Martín de Trevejo, monte Jálama, 18 April 2018, fl., P. Escobar García 98/2018 ( W) ; ibidem, 18 April 2018, fl., P. Escobar García 99/2018 ( W) ; ibidem, 26 April 2018, fl., P. Escobar García 108/2018 ( W) .

Etymology: —The species is named after the Vienna-based Austrian botanophile and benefactor Richard Grasl (1958–).

Figures

FIGURE 1. A. Typical colony of short-scaped N. vitekii on an open pasture at the locus classicus in Sierra de Gata (Extremadura, Spain). B. N. rupicola in a shady quartzite crevice near Hornachos (Badajoz). C. N. triandrus subsp. pallidulus in the immediate vicinity of N. vitekii in a forest clearing. Note the more elevated habit of the latter in a partially shady habitat. D. N. × richardianus in a neighbouring scrub clearing. Pale flowers and widely open coronas are the typical outcome of N. triandrus subsp. pallidulus acting as the maternal parent (see also Fig. 2D). E. N. × kirchnerianus in an open pasture close to granite outcrops. Note the intense yellow and the narrowed corona mouth, typical outcome of a crossing where N. vitekii acted as the maternal parent (compare with Fig. 2E).All photographs by the author.

FIGURE 2. Comparative plate depicting A. N. triandrus subsp. pallidulus, B. N.vitekii, and C. N. rupicola. The two first species hybridize to form N. × richardianus (D1. Offspring of N.triandrus subsp. pallidulus ♀ × N. vitekii ♂; D2. Offspring of N. triandrus subsp.pallidulus ♂ × N. vitekii ♀; E. N. × kirchnerianus: offspring of N. rupicola ♀ × N. vitekii ♂, note the widely open corona in contrast with Fig. 1E.