Cheilanthes krameri Franch. & Sav.

Family

Pteridaceae, subfamily Cheilanthoideae

Nomenclature

Cheilanthes krameri Franch. & Sav., Enum. Pl. Jap. 2: 212, 619. 1879; Boonkerd & Pollawatn, Pterid. Thailand: 120. 2000. – Aleuritopteris krameri (Franch. & Sav.) Ching, Hongk. Nat. 10: 202. 1941; S.K.Wu, Mem. Fac. Sci. Kyoto Univ. Biol. 8: 154. 1983.

Cheilanthes farinosa auct. non (Forssk.) Kaulf.: Tagawa & K.Iwats., Fl. Thailand 3: 203. 1985, p.p.

Description

Rhizome short, erect or ascending, scaly; scales linear-lanceolate, dark brown, membranous. Stipes longer than laminae, 10–25 cm long; scales ovate-subulate, rufo-brown, sometimes glandular at margin. Laminae ovate or triangular in outline, 5–8(–20) by 3–4(–12) cm, bipinnatifid to tripinnatifid; pinnae 5–9 pairs, lower pinnae with short stalk, 2–5 by 1–3 cm, basiscopic side wider than acroscopic side. Sori at margin of lobes, interrupted, protected by reflexed margin of lobes.

Distribution in Thailand

NORTHERN: Chiang Mai, Lamphun, Tak; EASTERN: Nakhon Ratchasima.

Wider Distribution

Japan and Taiwan.

Ecology

On rocks in light shade at medium or high altitudes.

Proposed IUCN Conservation Assessment

Data Deficient (DD). There is considerable taxonomic confusion in the genus Cheilanthes making accurate conservation assessments of many of the species difficult.

Notes

Cheilanthes is a difficult genus that needs more taxonomic research.

Site hosted by the Royal Botanic Garden Edinburgh. Content managed by Stuart Lindsay, Gardens by the Bay, Singapore and David Middleton, Singapore Botanic Gardens. Last updated 16 November 2016.