Cyathea croftii

Cyathea croftii is a species of tree fern endemic to Manus Island in the Admiralty Islands, where it grows in damp forest on steep slopes at an altitude of about 500 m. It is relatively uncommon in the wild. The trunk is erect, up to 3 m tall and about 6 cm in diameter. Fronds bi- or tripinnate and 2–3 m long. The rachis and stipe are often light green, particularly when young. They are slender and covered with glossy brown scales towards the base. Sori are small and occur in rows, one along each side of the pinnule midvein. They are covered by thin indusia.

The specific epithet croftii commemorates pteridologist James R. Croft (b. 1951).

References

• Braggins, John E. & Large, Mark F. 2004. Tree Ferns. Timber Press, Inc., p. 118. ISBN 0-88192-630-2
• The International Plant Names Index: Cyathea croftii
• Holttum, R. E. (1 January 1982). "Species of Cyathea in the Western Pacific related to C. multiflora Sm. and allies in America". Kew Bulletin. 37 (3): 383–388. doi:10.2307/4110037. ISSN 0075-5974. JSTOR 4110037.