Pleopeltis (Polypodiaceae) in Brazil
Souza, Filipe Soares De
Salino, Alexandre
Phytotaxa
2021
2021-07-29
512
4
213
256
4K7Z9
Smith (2005: 282)
Smith
282
2005
[177,577,1598,1625]
Polypodiopsida
Polypodiaceae
Pleopeltis
Plantae
Polypodiales
34
247
Tracheophyta
species
stolzei
Plantsepiphytic. Rhizomesshort-creeping, with scales lanceolate, blackish, base rounded with a blackish point of attachment, apex acuminate, margin blackish and entire; frondsmonomorphic, 9–13 × 1.2–1.6 cm, petiolate, petioles terete, 0.5–1.5 cmlong, alate, scaly; laminae 8–11 cmlong, simple, lanceolate to elliptic, base cuneate, apex acuminate to aristate, margin entire, scaly on both surfaces; rachises terete, glabrescent; venationanastomosing; frond scaleslanceolate to ovate (those of petioles), ovate to stellate (those of both surfaces of laminae) or widely-elliptic to rounded (those of sori), stramineous to brown or brown to blackish, base rounded with a blackish point of attachment, apex acuminate, margin stramineous, brown to blackish and entire, erose or laciniate; sorirounded, infra-medial, covered by scales; sporesshallowly verrucate with sparse globules. FIGURE 16.Distribution of two species of Pleopeltisin Brazil. A. P. stolzei; B. P. trindadensis. FIGURE 17.Rhizome scales of seven species of Pleopeltisfrom Brazil. A. P. burchelii, rhizome; B. P. minima, rhizome; C. P. gyroflexa; D. P. stolzei; E. P. minima; F. P. macrocarpa; G. P. bombycina; H. P. monoides; I. P. stolzei; J. P. burchelii. FIGURE 18.Venation and sori of four species of Pleopeltisfrom Brazil. A. P. desvauxii, anastomosing veins; B. P. furcata, free veins; C. P. hirsutissima, two sori surrounded by scales; D. P. macrocarpa, sorus covered by peltate scales; E. P. astrolepis, sorus covered by peltate scales; F. P. desvauxii, linear marginal sori; G. P. hirsutissima, immature sorus covered by peltate scales; H. P. hirsutissima, mature sorus surrounded by peltate scales. FIGURE 19.Laminar indument of three species of Pleopeltisfrom Brazil. A. P. alborufula,adaxial surface; B. P. alborufula,abaxial surface; C. P. burchelii, adaxial surface; D. P. burchelii, abaxial surface; E. P. monoides,adaxial surface; F. P. monoides,abaxial surface. FIGURE 20.Laminar scales of eight species of Pleopeltisfrom Brazil. A. P. alborufula,abaxial scale; B. P. burchelii, abaxial scale; C–D. P. minima, abaxial scales; E. P. bombycina,abaxial scale; F. P. trindadensis, abaxial scale; G. P. hirsutissima, abaxial scale; H. P. lepidopteris,abaxial scale; I. P. minarum,abaxial scale; J. P. bombycina,adaxial scale; K. P. lepidopteris,adaxial scale; L. P. minarum,adaxial scale; M–N. P. alborufula,adaxial scales. Specimens examined:— BRAZIL. Acre: Mâncio Lima, Parque Nacional da Serra do Divisor, 14 December 2010, T.E. Almeida& A. Salino2629( BHCB); Amazonas: Barreririnha, 14 April 1970, B.W.P. Albuquerque304( INPA); Tabatinga, Tribo dos Ticum, 13 October 1976, P.I.S. Braga3119( INPA); March 1875, J.W. Traill 1289(K).
Distribution and habitat:— Ecuador, Peru, and Bolivia. In Brazil, it is known only from Acreand Amazonas states ( Fig. 16A). Notes:—This species can be recognized by its cuneate lamina base and brown scales on the abaxial surface of the lamina. In Brazil, it can be confused with P. macrocarpa. However, P. stolzeihas a winged petiole unlike the petiole of P. macrocarpa. According to MMA (2014) the species is not threatened. However, after reviewing the IUCN criteria (IUCN 2017, https://www.iucnredlist.org/resources/categories-and-criteria), the authors believe that the species should be classified as EN. It presents a small area of occurrence and occupation, being known to only one locality (Serra do Divisor).
[372,577,1598,1625]
Moran & Fernandez
Peru
Huanuco
34
247
1
Huanuco
holotype
2010-12-14
BHCB
T. E. Almeida & A. Salino
Brazil
Parque Nacional da Serra do Divisor
Mancio Lima
40
253
1
Acre
[610,1447,194,220]
1970-04-14
INPA
Albuquerque
Brazil
Barreririnha
40
253
1
Amazonas
[136,949,230,257]
1976-10-13
INPA
Tribo dos Ticum & P. I. S. Braga
Brazil
Tabatinga
40
253
1
Amazonas