• Journal of Korean Society of Forest Science
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• v.88 no.2
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• pp.213-220
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• 1999

The pollen morphology of six taxa of the genus Indigofera in Korea was investigated by light microscope(LM) and scanning electron microscope(SEM). The pollen grains of the genus were monads, prolate spheroidal or subprolate, and trizonocolporate. Sculpture patterns of mesocolpium area were densely microperforate(DMIP) or verrucate with pitted perforate striae(VPPS). Based on sculpture patterns in mesocolpium, apocolpium and colpus areas, three major pollen types of Indigofera were discernible ; Decora, Kirilowii and Koreana. It seemed as if there was some relationship between chromosome numbers and mesocolpium sculpture patterns and the pollen types Decora and Kirilowii were branched out from the pollen type Koreana.

• Journal of Korean Society of Forest Science
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• v.80 no.2
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• pp.193-201
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• 1991

The pollen morphology of 7 taxa, 3 genera of Buxaceae growing in Korea was investigated by means of light(LM) and scanning electron microscope (SEM). The results were as follows ; 1. A key to the genera of Buxaceae on the basis of pollen morphology was provided. 2. Pollen Length that Buxus was $21.9{\mu}m-28.3{\mu}m$, Pachysaradra was $34.9{\mu}m-43.0{\mu}m$ and Sarcococa was $27.2{\mu}m-39.6{\mu}m$ and that muri width and length were $0.3{\mu}m-4.6{\mu}m$, $0.9{\mu}m-4.3{\mu}m$, and that Lumen length was $0.4{\mu}m-2.4{\mu}m$. 3. Sculpture patterns were reticulate (Buxus) and chain shape (Sarcococa and Pachysandra). 4. Aperture type was polyforate.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.34 no.1
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• pp.106-112
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• 1989

To investigate varietal differences of anther size, pollen shape, pollen fertility and other agronomic characters under low temperature condition. twenty rice varieties (5 Tongil and 15 Japonica type) were treated at 19$^{\circ}C$ water temperature from booting to heading stage. There was varietal difference of low temperature response which was indicated by the delayed heading, the shortening of culm and panicle length. and the decrease of grain fertility and yield potential resulted from cooling treatment at booting stage. The varieties with low fertility damaged by the low temperature treatment at booting stage showed low pollen density per anther. small or abnormal anthers and pollen, and many sterile pollens. Anther length was correlated significantly with the number of pollens per anther and pollen fertility.

• Korean Journal of Plant Taxonomy
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• v.37 no.4
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• pp.447-476
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• 2007

The pollen and revisional study aimed for an elucidation of taxonomic delimitation and relationship of Thalictrum taxa in Korea, especially among the morphologically confused taxa. Pollen grains of 63 populations of 17 taxa were investigated by light and scanning electron microscopy. Although pollen morphology was not useful for the species classification, it revealed a tendency in which Sects. Physocarpum, Erythrandra and Tripterium having broad filaments and round-tipped anthers possess closer distance between adjacent pores, less echinus number per unit area, smaller pollen, and higher echinus, on the contrary to Sects. Omalophysa, Camptonotum and Thalictrum having filiform filaments and acute-acuminate- or more or less round-tipped anthers. The palynological result did not support several section system by Tamura (1992) but one section system by Lecoyer (1885). If a infrasectional system is needed, it was suggested that the system dividing the section into two (Clauiformes and Filiformes sensu Lecoyer) would be natural on the basis of stamen and pollen characteristics. Revisional study found out that 17 taxa(16 species) of Thalictrum are distributed in Korean including T. filimentosum which presence in Korea was not confirmed.

• Journal of Korean Society of Forest Science
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• v.55 no.1
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• pp.1-21
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• 1982

The pollen morphology of 2 forms, 6 varieties, 50 species, 15 genera, 11 families of Korean Sapindales was studied. The keys were provided for general and families of Korean Sapindales. General pollen morphology was diversed and taxonomically significant differences were obtained in shape, aperture, type and size, sculpture pattern and exine thickness of pollen grains. Pollen grains of Korean Sapindales could be grouped into four types and five subtypes. One of five sub-types pollen grains of Acer could be ground into four under subtypes: ginnala type, barbinerve type, psseudo-sieboldianum type and negundo type. Pollen morphology of Empetraceae, Buxaceae and Balsaminaceae appeared to have very special features in the equatorial view and aperature type compare with pollen grain of the other families of Korean Sapindales.

• Journal of Korean Society of Forest Science
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• v.78 no.1
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• pp.35-41
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• 1989

The pollen morphology of nine species and one variety of Korean Salix was investigated by means of light and scanning electron microscopy. Pollen grains are tricolpate or tricolporate varying from subprolate or prolate. Based on aperture and sculpture patterns, the pollen morphology of the investigated Korean Salix appeared to exhibit three different types.

• Journal of Korean Society of Forest Science
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• v.40 no.1
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• pp.35-42
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• 1978

Pollen grains from 17 species, 9 genera, 5 families of Korean gymnosperms were described. A key to the genera on the basis of pollen morphology was provided.

• Journal of Korean Society of Forest Science
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• v.86 no.2
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• pp.251-258
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• 1997

The pollen morphology of 20 species and one variety of the two genera of Hippocastanaceae was investigated by LM, SEM and TEM. The pollen grains of this family are monads, prolate to subprolate, isopolar, radially symmetrical, 3-colporate or 3-colpate and ora is circular or lolongate. Sculpture pattern is distinctly striate or spinulose, Brae in various directions. Based on the aperture types and sculpture patterns three major pollen types of this family are discernible : hippocastanum, indica, and punduana.

• Journal of Plant Biology
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• v.35 no.3
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• pp.205-210
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• 1992

Size>; and sculpture pattern of pollen grains in seven species and two varieties of the genus Lilium in Korea were examined by LM and SEM, and their evolutionary trends were discussed. Lilium species in Korea can be divided into two groups based on pollen morphology: one is small reticulate group with small pollen grains and lumens, which includes L. concolor var. pulchellum and L. callosum; the other is large reticulate group with large pollen grains and lumens, which includes remaining taxa. It is thought that small reticulate group is more primitive than large reticulate group on the basis of tectum coverage. According to the above results and some morphological characters of salles and perianth segments, L. concolor var. pulchellum and L. callosum are very closely related, and they would be treated under the same subsection.ection.

• Korean Journal of Plant Taxonomy
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• v.33 no.3
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• pp.255-270
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• 2003

Pollen morphology of four genera (Daphne L. - 4 spp., Edgeworthia Meisn. - 1 sp., Wikstroemia Endl. - 2 spp., and Stellera L. 1 sp.), except 1 taxon (Diarthron Turcz. - 1 sp.) in Korean Thymelaeaceae were examined with light (LM) and scanning electron microscopy (SEM). The size of grains ($11.3-60.0{\mu}m$) are varied from small (in Stellera) through medium (in Daphne and Wikstroemia) to large (in Edgeworthia). All studied taxa have monad, spheroidal, pantoporate (10-20) grains. The exine is reticulate, especially a typical "croton pattern" which is comprising rings of more or less trihedral subunits. Each triangular subunit is topped by a single microspinule, and the surface pattern is psilale. In Daphne, three types of subunit arrangement can be recognized; - (1) Type I : subunits are arranged circles and attached to each other or sometimes fused in part, (2) Type II: each subunit is trihedral and isolated distinctly, and (3) Type III: each subunit is isolated, but somewhat vague. Systematic implication of the present pollen data for the Korean Thymelaeaceae is also briefly discussed.