Plants – Herbaceous ornamental foliage plant – Fern
Plant Patent
2003-11-18
2004-07-06
Campell, Bruce R. (Department: 1661)
Plants
Herbaceous ornamental foliage plant
Fern
Plant Patent
active
PP014995
ABSTRACT:
Botanical classification:
Nephrolepis exaltata
cultivar Nr. 21.
BACKGROUND OF THE INVENTION
The present invention relates to a new and distinct cultivar of Nephrolepis fern plant, botanically known as
Nephrolepis exaltata,
and hereinafter referred to by the name ‘Nr. 21’.
The new Nephrolepis fern is a naturally-occurring whole plant mutation of the
Nephrolepis exaltata
cultivar Whitmanii, not patented. The new Nephrolepis fern was discovered by the Inventor in a controlled environment in De Kwakel, The Netherlands in November, 2000.
Since May 2001, asexual reproduction by divisions of the new Nephrolepis fern in a controlled environment at De Kwakel, The Netherlands has shown that the unique features of this new Nephrolepis fern are stable and retained through successive generations of asexual reproduction.
SUMMARY OF THE INVENTION
The new Nephrolepis fern has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature and light intensity without, however, any variance in genotype. The following observations, measurements and comparisons describe plants grown in De Kwakel, The Netherlands, under conditions generally used in commercial practice.
The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Nr. 21’. These characteristics in combination distinguish ‘Nr. 21’ as a new and distinct cultivar:
1. Mostly upright and somewhat outwardly arching plant habit.
2. Strong, erect and visible rachis.
3. Long straight fronds with numerous undulate pinnae.
The new Nephrolepis fern is most similar to its parent cultivar, the
Nephrolepis exaltata
cultivar Whitmanii. However in side-by-side comparisons conducted in De Kwakel, The Netherlands, the new Nephrolepis fern differed from plants of the cultivar Whitmanii in the following characteristics:
1. Plants of the new Nephrolepis fern were more upright in plant habit than plants of the cultivar Whitmanii.
2. Plants of the new Nephrolepis fern were more compact than plants of the cultivar Whitmanii.
3. Plants of the new Nephrolepis fern had narrower fronds than plants of the cultivar Whitmanii.
The new Nephrolepis fern can be compared to plants of the
Nephrolepis exaltata
cultivar Corditas, not patented. However in side-by-side comparisons conducted in De Kwakel, The Netherlands, the new Nephrolepis fern differed from plants of the cultivar Corditas in the following characteristics:
1. Plants of the new Nephrolepis fern were more upright in plant habit than plants of the cultivar Corditas.
2. Plants of the new Nephrolepis fern had longer fronds than plants of the cultivar Corditas.
3. Rachis of plants of the new Nephrolepis were more visible than rachis of plants of the cultivar Corditas.
Braam Young Plants B.V.
Campell Bruce R.
Para Annette H
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