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Golden boston fern
PP4023 Golden boston fern
Patent Drawings:Drawing: PP4023-1    
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(1 images)

Inventor: Miller
Date Issued: March 22, 1977
Application: 05/665,811
Filed: March 10, 1976
Inventors: Miller; Robert O. (Smith River, CA)
Primary Examiner: Bagwill; Robert E.
Assistant Examiner:
Attorney Or Agent: Cypher; James R.
U.S. Class: PLT/379
Field Of Search: PLT/88
International Class:
U.S Patent Documents:
Foreign Patent Documents:
Other References:

Abstract: This invention relates to a new and distinct plant which is a sport of Nephrolepsis exaltata bostoniensis.
Claim: I claim:

1. A new and distinct variety of Boston fern having the characteristics of Boston fern but differing in that it is yellow to golden color, and has a growth rate approximately 60 percentthat of Boston fern.

This sport was selected from a large commercial planting of Boston ferns in our greenhouses at Smith River, Calif. because of its distinct golden color. This plant appeared as 11 individual plants from runners on one larger plant and wasselected, planted separately, and vegetatively propagated by runners in November, 1973. From the time of selection to the present, a period of 2 years, no further sports of similar nature have appeared in our extensive plantings and no plant propagatedfrom the original Golden Boston ferns have "reverted" to a green Boston Fern.


This plant is free growing, initially erect but with older fronds pendulous. Leaves are pinnately divided with the pinnae articulated, with succulent petioles. The pinnae are linear-lanceolate, acute, up to 5cm in length and 1cm in width andentire. The frond is more flexible than Boston fern with a waxy feel and appearance. No sori have been observed. In general overall aspects the plant is a Boston fern differing mainly in color.

Color is somewhat variable depending on environmental conditions ranging from Chip 145A to Chip 154B on the Royal Horticulture color chart published by the Royal Horticultural Society, London, 1966. The following table indicates the affect ofthe environment on color.

__________________________________________________________________________ Very high light (3000 F.C.) 150B-154B Yellowest color High light (2000-2500 F.C.) 145A-145B Intermediate Low light (1500 and below F.C.) 144B-144C Slight greenish appearance High fertility over .85 micromhos (5:1) Higher fertility results in greenish appearance Low fertility .30-.85 micromhos (5:1) Yellowest color High Temperature (70-80 degrees F) Slight greenish appearance Low temperature (below 68degrees F) Yellowest color __________________________________________________________________________

General growth is characteristic of Boston fern except that growth is slower, on the order of 60 percent that of Boston fern. Runners are freely produced in this same relationship.

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