Wednesday, May 1, 2024

[Botany • 2019] Neobartsia matuy (Orobanchaceae) • A New Species from the Colombian Andes


 Neobartsia matuy  Malagón, Humberto Mend. & Uribe-Convers, 

in Malagon, Mendoza-Cifuentes, Gómez-Parra et Uribe-Convers, 2019.

Abstract
A new species of Neobartsia endemic to the eastern Andes of Colombia is described, illustrated, and compared with related species. This species belongs to section Orthocarpiflorae and morphologically it is characterized by having floral bracts light green with glandular hairs, corolla yellowish green, the galea cucullate, longer than the lip, retrorsely glandular-puberulous, the lip three-lobed, glabrous and the corolla tube decurved. Currently, it is only known from two localities in the Colombian department of Boyacá, where it grows in the páramo ecosystem between 3528 and 3639 meters above sea level on rocky soil with grassy vegetation.

Keywords: Eudicots, Bartsia, Boyacá, Colombia, endemism, Orthocarpiflorae, páramo

 Neobartsia matuy.
A. Habit. B, C. Inflorescence. D. Floral bract, adaxial surface. E. Lateral view of a flower including bract, calyx and corolla. F. Lateral view of the corolla with the tube decurved. G. Lateral view of corolla, style, and ovary.
A–C from S. Gómez et al. 594 (paratype), D–G from H. Mendoza & E. Torres 22013 (Holotype). Photographers: Sofía Gómez (A–C), Humberto Mendoza (D–G).

Neobartsia matuy Malagón, Humberto Mend. & Uribe-Convers, sp. nov. 

Diagnosis:—This species belongs to the sect. Orthocarpiflorae and differs from Neobartsia alba (Molau) Uribe-Convers & Tank (2016: 678), N. elachophylla (Diels) Uribe-Convers & Tank (2016: 679), N. filiformis (Wedd.) Uribe-Convers & Tank (2016: 679), N. laniflora (Benth.) Uribe-Convers & Tank (2016:680), N. laticrenata (Benth.) Uribe-Convers & Tank (2016: 680), N. orthocarpiflora (Benth.) Uribe-Convers & Tank (2016:681), N. santolinifolia (Kunth) Uribe-Convers & Tank (2016: 681), N. sericea (Molau) Uribe-Convers & Tank (2016: 682) and N. trichophylla (Wedd.) Uribe-Convers & Tank (2016: 681) by the following combination of characters: stems green, retrorsely hirsute with colorless eglandular hairs in two rows; leaves linear to lanceolate, retrorsely hirsute on the veins on both sides, hairs eglandular, margins revolute, evenly crenate with 8–9 lobes on each side; floral bracts light green with glandular hairs, lanceolate, cuneate at base; calyx light green, glandular hirsute; flowers 13–13.6 mm long (without pedicel); corolla yellowish green, tube decurved, galea cucullate longer than the lip, retrorsely glandular-puberulous, hairs yellowish green.

Distribution and habit:—Neobartsia matuy is only known from two localities in the Northeastern Andean Cordillera in the department of Boyacá (Colombia), suggesting it is endemic to a few closely distributed páramos (Figure 4). It is possible that this species is also found in the Flora and Fauna Sanctuary of Iguaque, a protected natural national area adjacent to El Valle. It grows in the páramo ecosystem between 3550 and 3639 m above sea level on rocky soil with grassy vegetation.  

 Etymology:— The specific epithet is established to honor Uribe-Convers’ parents, Maria Luisa Convers and Ernesto Uribe, whose support was invaluable during the author’s dissertation on the genus Neobartsia. His parents do not use their given names and are better known by their nicknames “Marily” and “Tuchi”, respectively, and the word “Matuy”—a combination of their nicknames—has been used for years among family and friends to refer to both of them.

 Neobartsia matuy.
 A. Stem and leaves. B. Abaxial view of leaves, detail of revolute margin. C. Adaxial view of leaf apex. D. Lateral view of the leaf base. E. Abaxial view of the leaf base. F. Adaxial view of the leaf base. G. Detail of the pubescence of stem.
 All from H. Mendoza & E. Torres 22013 (Holotype). Photos by Humberto Mendoza. 

 Neobartsia matuy.
 A. Lateral view of the calyx. B–C. Detail of the calyx indumentum. D. Frontal view of the galea and lip. E. Lateral view of the corolla, detailing of the galea indumentum. F. Filament and anther in adaxial view. G. Filament and anther in abaxial view. H. Lateral view of the ovary. I. Cross section of the ovary.
All from H. Mendoza & E. Torres 22013 (Holotype). Photos by Humberto Mendoza.

 Distribution map of Neobartsia matuy


Maria Del Pilar Malagon, Humberto Mendoza-Cifuentes, Sofia Gómez-Parra and Simon Uribe-Convers. 2019. Neobartsia matuy (Orobanchaceae), A New Species from the Colombian Andes.  Phytotaxa. 424(2); 87–96. DOI: 10.11646/phytotaxa.424.2.2
 
Resumen: Una nueva especie de Neobartsia endémica a los Andes orientales de Colombia es descrita, ilustrada y comparada con especies afines. Esta especie pertenece a la sección Orthocarpiflorae y morfológicamente se caracteriza por tener brácteas florales verde claro con pelos glandulares, corola verde amarillenta, galea cuculada y mayor que el labio, glandularpubérula con pelos retrorsos, el labio con tres lóbulos, glabro y el tubo de la corola curvado. Hasta el momento, solo se conoce de dos localidades en el departamento colombiano de Boyacá, donde crece en ecosistemas de páramo entre los 3528 y 3639 metros sobre el nivel del mar, sobre suelos rocoso con vegetación herbácea.