<i>Dryopteris </i>plant named ‘Hollasic’

Abstract

A new cultivar of Dryopteris wallichiana plant named Hollasic that is characterized by its fronds that are bronze and golden orange in color when young, its fronds that change in summer to bright golden yellow and finally green in summer and into fall, and its an upright mounded plant habit from a rosette of erect rhizomes.

Claims

1. A new and distinct cultivar of Dryopteris plant named Hollasic as herein illustrated and described.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The accompanying colored photographs illustrate the overall appearance and distinct characteristics of the new cultivar.

(2) The plant in the photograph in FIG. 1 is about 10 years in age as grown outdoors in a 5-gallon container in Dorset, United Kingdom. The photograph in FIG. 1 provides a view of the young fronds of Hollasic.

(3) The photographs in FIG. 2 and FIG. 3 were taken of 3-year-old plants as grown in a cold greenhouse in 3-liter containers in Boskoop, The Netherlands. The photograph in FIG. 2 provides a view of the frond coloration in late spring to mid-summer of Hollasic. The photograph in FIG. 3 provides a view of the frond coloration in late summer of Hollasic.

(4) The photographs are as close as possible with the digital photography techniques available, the color values cited in the detailed botanical description accurately describe the colors of the new Dryopteris.

DETAILED BOTANICAL DESCRIPTION

(5) The following is a detailed description of two-year-old plants of the new cultivar as grown in a cold greenhouse in 10.5-cm containers in Boskoop, The Netherlands. The phenotype of the new cultivar may vary with variations in environmental, climatic, and cultural conditions, as it has not been tested under all possible environmental conditions. The color determination is in accordance with The 2007 Colour Chart of The Royal Horticultural Society, London, England, except where general color terms of ordinary dictionary significance are used. General description: Plant type.Herbaceous perennial in colder regions and evergreen in mild conditions. Plant habit.Broadly spreading, upright. Plant size.Average of 28 cm in height, 27.9 cm in spread. Cold hardiness.At least in U.S.D.A. Zone 6. Diseases and pests.No susceptibility or resistance to diseases or pests has been observed. Root description.Fine and fibrous from rhizomes. Propagation.Spores from plants grown in isolation under controlled conditions from other spore producing plants for true to type reproduction. Growth rate.Moderate to high. Root development.An average of 15 weeks for fully root in a 1 cm cell from spore sowing. Stem description: No stems or branches; fronds grow directly from the base; a rosette of erect rhizomes. Frond description: Frond division.Compound, bipinnatifid. Frond arrangement.Alternate, fronds grow directly from the base. Frond size.Average of 20.3 cm in length, 13 cm in width. Frond/pinna base.Hastate. Frond quantity.An average of 15 per plant, 28 pinna per frond. Frond/pinna apex.Acute. Frond/pinna shape.Narrow to narrow deltoid. Frond/pinna surface.Both sides glabrous, upper surface glossy, lower surface matte. Pinna shape.Lanceolate. Pinna size.Average of 7.2 cm in length, 2.4 cm in width. Pinna margins.Deeply lobed into pinnules; average of 34 pinnules per pinna; 1.3 cm in length, 6 mm in width, broad oblong in shape, slightly falcate, slightly to moderately convex, praemorse apex, truncate base, fine serrate margins. Pinnule venation.Pinnate, upper surface color; 202A, secondary rachis color; 203D, lower surface color; 147B, secondary rachis color; 147B. Pinnule color.Young upper surface; 164A, changing to 165B, later turning to 152C, young lower surface; 164B, changing to 152C, mature upper surface; 143A, mature lower surface; 138B. Rachis.Average of 25.4 cm in length, 2.5 mm in diameter, upper surface 146A, lower surface between 146A and 147A, both surfaces densely covered with scaly hairs an average of 0.2 cm in length, N199C to N199D in color, secondary rachis moderately covered with scaly hairs; an average of 1 mm in length and 199A in color. Spores.An average of 7 per pinnule on the lower surface, round in shape, an average of 9 mm in diameter and 200A in color.