잭큐몬티jacquemontii 자작나무 씨앗 주문 받습니다.

[이 일(미국)]

잭큐몬티jacquemontii 자작나무 씨앗 주문 받습니다.

1그램(379립)

10그램-100,000원

50그램-400,000원

100그램-700,000원

250그램-1,650,000원

500그램-3,000,000원

1킬로- 5,000,000원

1차 물량은 2월 18일 - 20일 서울에 도착할 예정입니다.

<잭큐몬티 파종법>

6주 이상의 휴면타파가 필요하다

10시간 정도 물에 담근 후

피트모스_버미큘러+커피 찌꺼기 등을 섞어 씨앗과 함께 수분을 준 후 지퍼백에 담아

5-8주간 냉장고에서 2-4도 정도 온도로 보관 한 후 파종한다. 비닐 등으로 덮어 수분을 

유지해준다. 실온에 어두운 곳에서 발아시킨다. 발아하면 양지바른 곳으로 옮겨준다. 

노지 직파는 겨울이 오기 전10월경에 하면 된다.

var. jacquemontii (Spach) Winkler B. jacquemontii Spach; B. utilis subsp. jacquemontii (Spach) Kitamura – As suggested on page 434, B. jacquemontii is not sharply demarcated from B. utilis, and a varietal or subspecific rank is preferable. The type-specimen on which Spach founded his species in 1841 had been collected just over a decade earlier by the French traveller Victor Jacquemont in Kumaon, probably in the region of the upper Sutlej river, north-east of Simla, an area from which other specimens, collected by Edgeworth, were considered by Dr Stapf to be intermediate between B. utilis and B. jacquemontii. However, Ashburner and Schilling put the boundary between the brown bark forms (var. utilis) and the white bark forms (var. jacquemontii) in central Nepal, the approximate dividing line being the Kali Gandaki gorge (op. cit., pp. 117–19). The two views are not wholly contradictory, since an almost white bark can be associated with foliage that agrees with typical B. utilis, and the status of such forms is controversial.

Birches that have been included in B. jacquemontii occupy a vast area stretching from Kumaon or perhaps western Nepal at its south-eastern extremity through the north-western Himalaya into the complex mountain systems of inner Kashmir, West Pakistan (Swat Himalaya) into the Hindu Kush of Afghanistan. The extreme north-western state of the aggregate differs markedly from typical B. utilis in having leaves with only five or six more widely spaced pairs of veins (against ten to fourteen), broad-cuneate at the base (against more or less truncate). This race has been distinguished as B. utilis subsp. occidentalis Kitamura (B. jacquemontii subsp. occidentalis (Kitamura) Browicz). Ashburner and Schilling, who give this birch the rank of variety, define it differently, attributing to it: winter-buds conspicuously encrusted with white resin; shoots densely warted and only slightly pubescent; leaves markedly glandular beneath, with seven to ten pairs of veins. They also give it a wider range to the east, as far as Kashmir and Lahul. This birch, however defined, presents taxonomic problems, since it really has little in common with typical B. utilis, except in having the scales of the fruiting catkins with narrow lobes, the two lateral lobes ascending. Dr Browicz, in Flora Iranica, remarks that this birch comes into contact with species of Russian Central Asia which also have scales with ascending lateral lobes but these are classified in the section Albae in the Flora of the Soviet Union, while B. utilis is placed in section Costatae with B. ermanii et al.

The Betula utilis complex is now represented by trees from a remarkably large number of natural-source collections, ranging from Kashmir to China, whence the var. prattii has been reintroduced by Roy Lancaster and by Keith Rushforth. See the list of those in the Kew collection at Wakehurst Place (op. cit., p. 122).

The well-known Grayswood Hill tree mentioned on page 433 was fortunately propagated vegetatively before it died, and the clone has been named ‘Grayswood Ghost’. The tree from S.S. & W. 4382, which grew at Wisley outside Aberconway House, is also dead, but vegetative propagations exist and have been named ‘Sauwala White’ (not to be confused with the tree from the same gathering that grows at Wisley on Weather Hill). The white-barked tree in the Royal Botanic Garden, Edinburgh, mentioned on page 434, has been named ‘Inverleith’. Ashburner and Schilling suggest that it is a hybrid of garden origin between B. utilis var. jacquemontii and possibly B. pubescens. The above cultivar-names were all published by them in the article mentioned.