Tag Archive for 'Clifford Parks'

A new catalog from Camellia Forest Nursery, Fall 2008 – my review

Camellia Forest Nursery is a nursery in North Carolina managed by Kai Mei and David Parks. Kai Mei is a wife of Dr. Clifford Parks (one of the authors of “Collected Species of the Genus Camellia”, 2005) and David Parks is their son.

Mieko Tanaka

The most interesting sasanqua hybrid offered this year is a true red ‘Mieko Tanaka’. Almost all previous “red” sasanquas were actually dark pinks (for example ‘Bonanza’ and ‘Reverend Ida’). The only previous true red was ‘Yuletide’, a chance seedling of Hiryu, originated in Nuccio’s Nurseries back in 1963.

The basic problem with red color is that wild C. sasanqua has no red (or pink) pigment – anthocyanin.

According to Dr. Takayuki Tanaka and other researchers, all pink sasanqua cultivars probably originated from an ancient C. japonica x sasanqua hybrid approximately 400 years ago almost definitely in Japan. The estimation 400 years comes from chloroplast genome DNA (cpDNA) analysis. Additionally, athocyanin chromatography demonstrates that all pink sasanquas (together with x hiemalis and x vernalis hybrids) share the form of anthocyanin with C. japonica and does not have pigments specific for C. reticulata and C. saluensis.

Based on this information, Dr. Tanaka was working on sasanqua-japonica hybridization and finally he developed a cultivar ‘Mieko Tanaka’ (C. x vernalis ‘Gaisen’ x C. japonica).

Plain Jane, O’Nishiki, Winter’s Rose and Winter’s Red Rider

Another important cultivar now available for sale in Camellia Forest Nursery is C. oleifera ‘Plain Jane’. This plain white flower has two distinctive quantities.

First of all, it is one of the most cold-hardy camellias, used by Dr. William Ackerman for his cold-hardiness hybridization program. For example, Dr. Ackerman claims that his cultivar ‘Winter’s Rose’ (C. oleifera ‘Plain Jane’ x C. x hiemalis ‘Otome’) can survive winter temperatures down to -15 F / -26 C.

Second, according to Dr. Ackerman, ‘Plain Jane’ may be used to create dwarf cultivars that are useful as patio and bonsai plants. Particularly, ‘Winter’s Rose’ is also a dwarf camellia. When Dr. Ackerman crossed ‘Plain Jane’ with C. sasanqua ‘O’Nishiki’, he got 3:1 mendelian ratio between normal and dwarf seedlings. This suggested that both ‘Plain Jane’ and ‘O’Nishiki’ carry heterozygous alleles of a dwarfiness gene. (Yes, I know that both plants are hexaploids – so an additional explanation from Dr. Ackerman is needed).

Luckily I got cuttings of ‘O’Nishiki’ last Summer from Mr. Garet Uemura who lives in Hawaii. Thank you, Mr. Uemura!
Continue reading ‘A new catalog from Camellia Forest Nursery, Fall 2008 – my review’

Camellia grijsii

This month The International Camellia Society put two of my camellia photo pictures to the front page of their website. One is a picture of Camellia japonica ‘Kamo Honnami’ (see their website), and another is a picture of Camellia grijsii, a species related to C. sasanqua:

Camellia grijsii
C. grijsii

Camellia grijsii (长瓣短柱茶 in Chinese) Hance (1879) is a wild species of section Paracamellia. It is related to C. sasanqua, C. oleifera and C. kissii. It was collected in 1861 in Fujian by C.F.M. de Grijs. It is distributed in China (Fujian, Hubei, Sichuan, Guangxi) and used for a high-quality oil production. C. grijsii is closely related to another species – C. yuhsienensis, that is a parent of a popular cultivar ‘Yume’.

I got my two plants of C. grijsii from Nuccio’s Nurseries. The first one (shown above) has single white flowers and the second one is a double-flowered Chinese cultivar called ‘Zhenzhucha’:

Camellia grijsii 'Zhenzhucha'
Camellia grijsii ‘Zhenzhucha’

Camellia grijsii has great hybridizing potential. Two plants in my garden have small leaves with impressed veins and very columnar shape. I believe there are also varieties with larger leaves, but I am specifically interested in small-leaved cultivars.

Another great feature of C. grijsii is its cluster-flowering habit. However in my garden C. grijsii flowers from January to March, so it will be a challenge to cross it with Fall-flowering sasanquas. Probably I will have to store some pollen from sasanquas in refrigerator for a couple of months.

Another problem is chromosome number. According to Kondo and his associates it has a variety of chromosome numbers 2n = 30, 60, 75 and 90 (see the reference in Collected Species of the Genus Camellia, an Illustrated Outline by Gao Jiyin, Clifford R. Parks and Du Yuequiang).
Continue reading ‘Camellia grijsii’