Plant of the Cactaceae plant family `Cambridge`

#The invention relates to a new and distinct plant variety of the Cactaceae family and which has been named the Zygocactus truncatus `Cambridge` by the inventors.

#Certain plant varieties of the Cactaceae family are well known in the foliage plant market and among these are those which are commonly referred to as the Christmas Cactus varieties because they tend to bloom during the Thanksgiving-Christmas holiday season in the northern hemisphere.

#The Christmas Cactus varieties on the market have blooms which vary in color from one variety to the next as is evident from the current U.S. patent art. One of the more popular varieties sold commercially in the market place in the variety that has been named Zygocactus truncatus `Gold Charm`. This variety is the only Christmas Cactus in the market place which is known to the inventors as having a generally yellow colored bloom. It forms the subject matter of U.S. Plant Pat. No. 5,104.

#The accompanying drawings serve by color photographic means to illustrate the new plant variety and wherein one sheet show a eight (8) month old specimen which was grown from the propagation of a single phylloclade in a conventional 3 in. pot found in the marketplace. A second sheet shows an enlargement of a fully open bloom taken from the specimen shown in the first mentioned sheet. Still another sheet shows another fully open bloom together with a bloom as sectioned generally longitudinally through the perianth tube and ovary to expose the style and stamen arrangement. The last sheet show three phylloclades taken from a specimen of the new variety, each phylloclade having an attached bud or bloom to illustrate the buds in progressive stages of maturity.

#The following is a detailed description of the new plant variety with colors and hues, unless otherwise clearly indicated by the text, as, for example, through the absence of color notations, being named in accord with the I.S.C.C.-N.B.S. Method of Designating Colors (U.S. Dept. of Commerce, National Bureau of Standards, Circular 553), the named colors being interpreted from color notations derived by comparison with color specimens of the Munsell Book of Color. The description is further based on observations of well fertilized plants about one year old from initial propagation and which were grown under 50-75% shaded glasshouse nursery conditions in the Winter Garden, Fla. area and wherein temperatures range from 60.degree.-85.degree. F. during the winter months, from 75.degree.-95.degree. F. during the summer months, and are ambient during the intervening periods.

#I. Name: Zygocactus truncatus `Cambridge`.

#II. Parentage: This variety was developed from a natural mutation that occurred on a specimen of the variety known as Zygocactus truncatus `Gold Charm` (See. U.S. Plant Pat. No. 5,104).