Zephyranthes lucida (R.S.Oliveira) R.S.Oliveira & Dutilh

Oliveira, R.S. & Sano, P.T. 2009. Two new species of Habranthus (Amaryllidaceae) from the Espinhaço Range, Brazil. Kew Bulletin: 64: 537. DOI: https://doi.org/10.1007/s12225-009-9144-0

Type

Brazil, Bahia, Rio de Contas: arredores da cidade, naestrada para o Pico das Almas, 13°35′S, 41°48′W, Elev. 960 m, Beira da estradaempasto, 28 Oct. 1988, R. M. Harley et al. 25711 (holotypusSPF!; isotypi CEPEC, K, MBM!, SP!).

Vegetative Multiplication Bulbs

Bulb 1.3 – 2 cm diam., globose, tunics brown; neck 1 – 3 cm long

Morphology Leaves

Leaves c. 7 cm long during flowering, 1 – 2 mm wide, 6 – 8-nerved, narrowly linear, green; apex acute

Morphology Reproductive morphology Inflorescences Scape

Scape 9.8 – 16.3 cm tall, 2 – 3 mm wide, 1-flowered, green and reddish at base

Morphology Reproductive morphology Inflorescences Bracts Spathe

Spathe 2.2 – 3 cm long, tubular, rosy; lobes 0.7 – 1.3 cm long, erect

Morphology Reproductive morphology Flowers Pedicel

Pedicel 2.2 – 3.5 cm long, green

Morphology Reproductive morphology Flowers Perianth

Perianth 3.2 – 5.2 cm long, funnelform, declinate; tube 2 – 5 mm long

Morphology Reproductive morphology Flowers Corona

Paraperigone of scales

Morphology Reproductive morphology Flowers Tepal

Tepals oblanceolate, white to pale rose, shiny, with apex and nerves darker, base greenish; outer 10 – 16-nerved, 2.7 – 4.5 cm long, 0.6 – 1.1 cm wide, apices obtuse; inner 8 – 12-nerved, 2.7 – 4.5 cm long, 0.4 – 0.8 mm wide, apices rounded. Staminal filaments in two lengths, declinate-ascending, white; the episepal 1.2 – 2.2 cm long; the epipetal 1.4 – 2.7 cm long

Morphology Reproductive morphology Flowers Androecium Stamens Anthers

Anthers 2 – 7 mm long, oblong, versatile; pollen yellow

Morphology Reproductive morphology Flowers Gynoecium Style

Style 1.7 – 2.4 cm long not exceeding the longest filaments, declinate, white; stigma trilobed, white; lobes 1 – 2 mm long

Morphology Reproductive morphology Flowers Gynoecium Ovary

Ovary 3 – 6 mm long, 2 – 4 mm wide, obovate, green-reddish, with 12 – 16 ovules per locule

Morphology Reproductive morphology Fruits

Capsule c. 1.7 cm diam. Seeds c. 4 mm long, elliptic, dark brown

Distribution

Brazil, known only from Bahia State, in Pico das Almas, where it occurs sympatrically with both Habranthusdatensis and H. itaobinus.

Ecology

Collections were made along the roadside, in campo rupestre.

Conservation

Habranthus botumirimensis is Critically Endangered (CR), because it is known to exist at only a single location.

Phenology

Flowering in October.

Note

Of the two co-occurring species, Habranthus lucidus most closely resembles H. itaobinus since both have a paraperigone composed of scales, staminal filaments in two lengths and style not exceeding the longest filament. However, H. lucidus has funnelform and more distinctly zygomorphic flowers, oblanceolate tepals, and outer tepals with obtuse apices; in contrast H. itaobinus has crateriform flowers, narrowly obovate tepals, and outer tepals with mucronate apices. It is possible that H. lucidus is a hybrid between H. datensis and H. itaobinus; but it has a morphological character set that is not present in other species. A biosystematic study of these populations is required to analyse whether there is introgression or a biological barrier.