The Fern Lover's Companion - A Guide for the Northeastern States and Canada by George Henry Tilton
page 88 of 136 (64%)
page 88 of 136 (64%)
![]() | ![]() |
|
DENNSTAÉDTIA. _Dicksònia_
Fruit-dots small, globular, marginal, each on the apex of a vein or fork. Sporangia borne on an elevated, globular receptacle in a membranous, cup-shaped indusium which is open at the top. (Named in honor of August Wilhelm Dennstaed.) HAYSCENTED FERN. BOULDER FERN DENNSTAÉDTIA PUNCTILÓBULA[A] _Dicksònia punctilóbula. Dicksònia pilosiúscula_ [Footnote A: We again remind our readers that the Latin names in small capitals represent the newer nomenclature.] Fronds one to three feet high, minutely glandular and hairy, ovate-lanceolate, pale green, very thin and mostly bipinnate. Primary pinnæ in outline like the frond; the secondary, pinnatifid into oblong and obtuse, cut-toothed lobes. Fruit-dots minute, each on a recurved toothlet, usually one at the upper margin of each lobe. Indusium fixed under the sporangia, appearing like a tiny green cup filled with spore cases. [Illustration: Hayscented Fern. _Dennstædtia punctilobula_ (Sudbury, Mass. G.E.D.)] [Illustration: Forked Variety of Hayscented Fern] |
|