The ferns and lycophytes of Reserva Natural Guaricica, Antonina, Paraná, Brazil
Matos, Fernando B.
Bohn, Amabily
Labiak, Paulo H.
Check List
2020
2020-02-21
16
1
183
206
4WBSF
Spring
Spring
[171,481,1446,1471]
Lycopodiopsida
Selaginellaceae
Selaginella
Plantae
Selaginellales
10
193
Tracheophyta
species
flexuosa
Figures 3B, 4C
Examined material. BRAZIL• 3 specimens; Trilha do Gervásio; 25°14′39″S, 048°39′59″W; alt. 50 m; 21 Dec. 2004; F.B. Matos& P.H. Labiak166 leg.; CEPEC122125, MBM333141, RB691218• 1 specimen; Morrodo Quei- mado; 25°23′10″S, 048°42′19″W; alt. 300 m; 12 Jun. 2019; F.B. Matoset al. 2638 leg.; UPCB44416. Identification.Characterized by dichotomous, usually prostrate, non-articulate stems with 4 ranks of leaves: two lateral rows of larger spreading leaves and two rows of appressed and ascending median leaves on upper side of stem. Sporangia globose, opening by a slit across the top, arranged in quadrangular strobili located terminally on axes. Plants heterosporous, the megaspores four per sporangium, white, the microspores numerous per sporangium, orange. Sellaginella flexuosadiffers from other species of the genus in the area by oblong to elliptic lateral leaves, aristate median leaves, and a somewhat rugose texture of leaves adaxially.
Distribution and habitat.Neotropical. Terrestrial or rarely epiphytic in forests. Class Polypodiopsida Cronquist, Takht. & W.Zimm.
RB691218
2004-12-21
F. B. Matos & P. H. Labiak
Brazil
50
-25.244167
Trilha do Gervasio
21
-48.66639
10
193
3
2019-06-12
F. B. Matos
Brazil
300
-25.38611
Morro
21
-48.70528
10
193
1