from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Having spinules; minutely spiny.
from The Century Dictionary.
- In botany and zoology, furnished with spinules or diminutive spines.
from the GNU version of the Collaborative International Dictionary of English.
- adjective Covered with small spines.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Covered with small
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Other supposed hybrids have been found between the marginal shield and the spinulose fern and its variety _intermèdium_, and with Goldie's fern; also between the crested fern, including Clinton's variety and each of the others mentioned; and, in fact, between almost all pairs of species of the wood ferns, although we do not think they have been positively verified.
It differs from it, however, by being twice pinnate below, and from the typical spinulose fern by its glandular indusium; but from the intermediate variety it is more difficult to separate it, as that also has indusiate glands.
Pinnules pinnately cleft, the oblong lobes spinulose-toothed at the apex.
This fern has been thought to be a hybrid between the crested and spinulose ferns, but is now regarded as distinct.
Fronds one to three feet high, oblong-lanceolate, bipinnate, the upper pinnæ lanceolate, the lower triangular with spinulose teeth.
Pinnules variously cut into spinulose-toothed segments.
Pinnæ broadly lanceolate-falcate or the lowest triangular, strongly auricled on the upper side, densely spinulose-toothed.
The scales of the back are small and unequal; they gradually increase in size as they approach the base of the conical spines, which is surrounded with a ring of larger scales with longer spines; the large spines are conical; rather compressed, spinulose below, smooth and acute at the tip, and are usually furnished with a sharp-toothed ridge on the front edge, and sometimes on both.
K. foliis impariter 2-conjugatis: laminis spinulose serratis, adultis glabris» mediaovati.