Actinostachys minuta, a new species of grass fern from Mindanao, Philippines

By

Amoroso, Victor B.
Coritico, Fulgent
Fritsch, Peter

Type

Article

Date of Publication

2020

Original Publication

PhytoKeys

Volume

151

Pages

59--66

Subjects

Ferns , lowland tropical rainforest , Mount Hamiguitan Range Wildlife Sanctuary , Schizaeaceae

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.151.53100

 

Abstract

Actinostachys minuta Amoroso & Coritico (Schizaeaceae), from Mindanao, Philippines, is described herein as a new species. This species is distinguished from all other species of Actinostachys (grass ferns) by its notably short and narrow fronds, distinct triangular stipe, and bifid apex of the sorophore lamina with profuse white long hairs. This species is distinct from the other known Philippine species of Actinostachys by its diminutive epiphytic habit and a habitat restricted to the trunks of the tree fern Sphaeropteris polypoda (Baker) R.M.Tryon. A taxonomic key to the species of Philippine Schizaeaceae that incorporates the new species is provided.