Maxonia

C. Christensen

Smithsonian Misc. Collect. 66(9): 3. 1916.

Common names: Climbing wood fern
Etymology: for William R. Maxon, (1877–1948), American pteridologist
Treatment appears in FNA Volume 2.
 TaxonIllustrator 
FNA2 P42 Dryopteris-Arachniodes-Maxonia pg 287.jpegMaxonia apiifolia var. apiifolia
Dryopteris intermedia
Arachniodes simplicior
John Myers
John Myers
John Myers

Plants hemiepiphytic. Stems long-creeping and climbing trees, stolons absent. Leaves strongly dimorphic, fertile leaves greatly contracted, evergreen. Petiole ± equaling length of blade, base not swollen; vascular-bundles more than 3, arranged in an arc, ± round in cross-section. Blade deltate, 3–4-pinnate-pinnatifid, gradually reduced distally to pinnatifid apex, somewhat leathery. Pinnae not articulate to rachis, segment margins dentate to lobed; proximal pinnae largest or nearly so, petiolulate, ± equilateral or inequilateral, basiscopic side with pinnules longer than on acroscopic side; costae adaxially deeply grooved, grooves continuous from rachis to costae to costules; indument of transparent hairs along costae on both sides, also with a few linear scales abaxially on costae. Veins free, simple or forked. Sori in 1 row between midrib and margin, round; indusia round-reniform with shallow sinus, persistent. Spores brownish, spiny to broadly rugose. x = 41.

Discussion

Species 1 (1 in the flora).

Lower Taxa

"not swollen" is not a number.

... more about "Maxonia"
pinnatifid +
Robbin C. Moran +
C. Christensen +
simple to commonly +
3-4-pinnate-pinnatifid;deltate +
reduced +
roundish +
Climbing wood fern +
Tropical +
for William R. Maxon, (1877–1948), American pteridologist +
often +  and glabrous +
transparent +
round-reniform +
monomorphic +
evergreen +
not articulate +
inequilateral +  and equilateral +
nearly +  and largest +
Smithsonian Misc. Collect. +
round +, cuplike +, hoodlike +, reniform +, falcate +  and linear +
christensen1916a +, moran1987a +  and walker1972a +
2 +  and 3 +
persistent +
dentate +  and lobed +
shallow +
discrete +
reniform +  and oblong +
dictyostelic +, unbranched +  and branched +
creeping +  and erect +
Maxonia +
Dryopteridaceae +
tree +, climbing +  and plant +
on rock +  and terrestrial +