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C. caryotideum resources
Descriptive
habithabit
Distribution
extremely widespreadextremely widespread
Flora
Flora of JapanFlora of Japan
Photo
fine specimen, caryotideum?fine specimen, caryotideum?
frondfrond
Photo index
HawaiiHawaii

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Cyrtomium caryotideum (Wall. ex Hook. et Grev.) C. Presl

Dwarf holly fern

Etymology Caryotideum means Caryota-like, and that comes from the genus Caryota, palms with pinnate leaves.
Description Rhizome: erect, short, a few fronds in a tuft, becoming massive in age, scales dark brown, 1--1.5 cm long.
Frond: 70 cm high , evergreen, monomorphic, blade/stipe ratio: 2:1.
Stipe: rather densely scaly at base, vascular bundles: 4 or more, in an arc.
Blade: 1-pinnate, oblong-lanceolate, leathery, gray-green, filiform scales below, glabrous above.
Pinnae: 3 to 6 pair, large, sometimes with pointed ears at the base, a terminal pinna largest; margins minutely serrate, spiny; veins netted.
Sori: round, small, in 2 or 3 rows parallel to the midrib, indusium: peltate, grayish, sometimes darker in center, central, sporangia: brown.
Culture Habitat: on muddy crevices of limestone in mountain forests. Distribution: Japan, China, Philippines, Vietnam, Hawaii. Hardy to -20C, USDA Zone 6.
Synonyms
Aspidium caryotideum Wall. ex Hook. et Grev.
Polystichum caryotideum (Wall.) Diels
Cyrtomium caryotideum
Cyrtomium caryotideum. Habit, soral pattern, venation.  From the web site of Gerald Carr, Univ. of Hawaii
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