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DAVID J. MIDDLETON F.L.S. 《Botanical journal of the Linnean Society. Linnean Society of London》1992,110(4):325-325
MIDDLETON, D. J., 1992. Infrageneric combinations in Gaultheria L. (Ericaceae). Sections Pseudogaultheria and Brossaea and series Leucothoides and Gymnobotrys , previously invalidly published new combinations in Gaultheria , have been validated. 相似文献
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ARKHIPKIN A.I.; LAPTIKHOVSKY V.V.; MIDDLETON D.A.J. 《Journal of Molluscan Studies》2000,66(4):551-564
Inshore spawning sites of the cold water squid Loligo
gahiwere found in the waters of East Falkland (Southwest
Atlantic),where there is a major fishery based on this species. Egg
massesoccurred in algal beds, often at the outer (seaward) edge, with
ambientwater temperatures of 6.5-90C and salinity 33.75- 33.58. They
wereattached to the stipes of the kelp algae Lessonia
spp. and Macrocystispyrifera from 0.5 m to 2.5 m off the
bottom at 8-20 m depths.The overall density of egg masses was
low. The egg mass is abundle of elongated gelatinous translucent
capsules with eachcapsule firmly attached to the kelp stipe at its
basal end.The capsules are mainly 50-60 mm in length and contain an
averageof 70 fertilized eggs. Sampled egg masses consisted of 4-161
capsulesand from 138 to 11,487 eggs. Large egg masses (. 50 capsules)
wereapparently formed by several females at different times, as
embryosin different capsules were at various stages of
development.Eggs laid in winter are significantly larger than those
laidin summer. In comparison with tropical and temperate Loligo
spp.L. gahi have short egg capsules containing a small number of
eggs,but the eggs (2.2-2.5 mm diameter) and hatchlings (3.1-3.4 mm
mantlelength) are large. These are probable adaptations for cold
waterspawning and development. (Received 30 March 2000; accepted 5 June 2000) 相似文献
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A systematic survey of leaf and stem anatomical characters in the genus Gaultheria and related genera (Ericaceae) 总被引:1,自引:0,他引:1
DAVID J. MIDDLETON F.L.S. 《Botanical journal of the Linnean Society. Linnean Society of London》1993,113(3):199-215
MIDDLETON, D. J., A systematic survey of leaf and stem anatomical characters in the genus Gaultheria and related genera (Ericaceae). Leaf and stem anatomical characters of 123 species within the Gaultheria group of genera of the tribe Andromedeae are surveyed. A number of characters show considerable variation within a species which limits their taxonomic use. Other characters such as marginal sclerenchyma and, to a lesser extent, the hypodermis, the presence of adaxial stomata, the presence of free fibres and the pith type were of more taxonomic interest. These characters are discussed in relation to the generic and infrageneric classification of the group. 相似文献
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