Plants – Rose – Climber
Plant Patent
1999-06-15
2001-03-13
Campell, Bruce R. (Department: 1638)
Plants
Rose
Climber
Plant Patent
active
PP011806
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a new and distinct cultivar of Leatherleaf Fern plant, botanically known as
Rumohra adiantiformis
, and hereinafter referred to by the cultivar name Underhill.
The new cultivar was discovered by the Invention in Barberville, Fla., as a naturally-occurring mutation within a cultivated population of the
Rumohra adiantiformis
cultivar Mayfield, not patented.
Since September, 1994, asexual reproduction by division and by tissue culture of the new Leatherleaf Fern at Barberville, Fla., has shown that the unique features of this new Leatherleaf Fern are stable and retained through at least eight successive generations of asexual reproduction.
SUMMARY OF THE INVENTION
The new Leatherleaf Fern has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, light intensity and fertilizer regime, without, however, any variance in genotype. The following observations, measurements and comparisons describe plants grown in Barberville, Fla., under conditions generally used in commercial Leatherleaf Fern production.
The following traits have been repeatedly observed and are determined to be the unique characteristics of Underhill. These characteristics in combination distinguish Underhill as a new and distinct cultivar:
1. Upright and outwardly arching plant habit.
2. Moderate vigor and rapid growth rate.
3. Dark burgundy-colored rachis that are durable and strong; fronds resist breakage during transport.
4. Numerous pinnules per frond that are medium green, glossy, with finely and deeply serrate margins and acute apices gives a fringed lacy appearance to the frond.
5. Overlapping pinnules gives a full and dense appearance to the frond.
6. No spore formation.
The new Leatherleaf Fern can be compared to its parent cultivar, the cultivar Mayfield. However in side-by-side comparisons conducted in Barberville, Fla., plants of the new Leatherleaf Fern differ from plants of the cultivar Mayfield in the following characteristics:
1. Plants of the new Leatherleaf Fern develop larger and thicker rhizomes than plants of the cultivar Mayfield.
2. Rachis are shorter, stronger and more durable on plants of the new Leatherleaf Fern than rachis of plants of the cultivar Mayfield. In addition, rachis of plants of the new Leatherleaf Fern are burgundy in color whereas rachis of plants of the cultivar Mayfield are mostly green and brown at the base.
3. Plants of the new Leatherleaf Fern have broader fronds than plants of the cultivar Mayfield.
4. Pinnules of plants of the new Leatherleaf Fern are thinner, more deeply serrate and appear finer and lacier than pinnules of plants of the cultivar Mayfield.
5. Pinnules of plants of the new Leatherleaf Fern overlap more than pinnules of plants of the cultivar Mayfield which give a more densely foliated and fuller appearance to the new Leatherleaf Fern.
6. Pinnules of plants of the new Leatherleaf Fern are lighter green in color than pinnules of plants of the cultivar Mayfield.
7. Plants of the new Leatherleaf Fern have not been observed to develop spores whereas plants of the cultivar Mayfield typically develop spores.
The new Leatherleaf Fern can be compared to the
Rumohra adiantiformis
cultivar Newbold's Diamond, disclosed in U.S. Plant Pat. No. 9,113 and U.S. Pat. No. 5,650,551. However in side-by-side comparisons conducted in Barberville, Fla., plants of the new Leatherleaf Fern differ from plants of the cultivar Newbold's Diamond in the following characteristics:
1. Pinnules of plants of the new Leatherleaf Fern are more deeply serrate and appear finer and lacier than pinnules of plants of the cultivar Newbold's Diamond.
2. Pinnules of plants of the new Leatherleaf Fern overlap more than pinnules of plants of the cultivar Newbold's Diamond which give a more densely foliated and fuller appearance to the new Leatherleaf Fern.
3. Pinnules of plants of the new Leatherleaf Fern are lighter green in color than pinnules of plants of the cultivar Newbold's Diamond.
4. Plants of the new Leatherleaf Fern have not been observed to develop spores whereas plants of the cultivar Newbold's Diamond typically develop spores.
Campell Bruce R.
Kimball Melissa L.
Underhill Ferneries
Whealy C. A.
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