Actinostachys

Wallich

Numer. List. 1. 1829.

Common names: Ray spiked fern
Etymology: Greek aktis, ray, and stachys, spike, referring to the rays of the fertile leaves
Treatment appears in FNA Volume 2.
 TaxonIllustrator 
FNA2 P15 Dicranopteris-Schizaea-Actinostachys pg 111.jpegSchizaea pusilla
Dicranopteris flexuosa
Actinostachys pennula
John Myers
John Myers
John Myers

Plants terrestrial. Roots dark, fibrous, covered with dark, stiff hairs, 2–3 mm. Stems upright; hairs uniseriate. Leaves all fertile (even youngest), unbranched, long-petioled. Blades falsely digitate, reduced to 2–many erect to spreading terminal rays; rays appearing to whorled but actually borne on very short rachis. Sporangia in 2–4 rows. Gametophytes subterranean, not green, tuberlike, brown-hairy. x = 134, 140.

Distribution

Nearly worldwide in tropical regions

Discussion

Species 20 (1 in the flora).

... more about "Actinostachys"
Warren H. Wagner Jr. +
Wallich +
fist-like +
reduced +
Ray spiked fern +
Nearly worldwide in tropical regions +
Greek aktis, ray, and stachys, spike, referring to the rays of the fertile leaves +
fan--shaped +
long-petioled +  and unbranched +
rudimentary +
Numer. List. +
wagner1985a +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
2 (?) +  and 4 (?) +
Actinostachys +
Schizaeaceae +
epiphytic +  and terrestrial +
140 +  and 134 +