• Natural Product Sciences
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• 제11권4호
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• pp.193-195
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• 2005

The chromatographic separation of methanolic extract from the twigs of Ilex macropoda (Aquifoliaceae) led to the isolation of three hemiterpenes, and their chemical were elucidated by physico-chemical and spectroscopic analysis. Their structures were characterized as 4,5-dihydroxyprenyl caffeate (1), $4-(6-O-caffeoyl-{\beta}-D-glucucopyranosyloxy)-5-hydoxyprenyl$ caffeate (2), and $4-{\beta}-D-glucucopyranosyloxy-5-hydroxyprenyl$ caffeate (3), respectively. Compound 1 was isolated for the first time from plant.

• 식물분류학회지
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• 제32권3호
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• pp.293-299
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• 2002

새로이 명명된 완도호랑가시나무(Ilex $\times$ wandoensis C. F. Miller & M. Kim hybrid nov.)는 전남 완도군 완도에서 채집하였다. 완도호랑가시나무는 호랑가시나무(I. cornuta Thunb.)와 감탕나무(I. integra Thunb.)의 자연교잡을 통해 형성된 분류군이다. 따라서 가시형 엽연과 평평한 표면을 가진 신분류군은 사각형으로 뒤틀린 엽연에 강한 가시형 거치와 볼록한 표면을 가진 호랑가시나무와 전연이며 평평한 표면을 가진 감탕나무의 중간형질을 가지고 있다. 또한 완도호랑가시나무는 소교목이고 1.0-1.4cm의 엽병을 가진 점에서 관목이고 0.4-0.6cm의 엽병을 가진 호랑가시나무와 키가 큰 교목이고 1.5-2.0cm의 엽병을 가진 감탕나무와 뚜렷이 구별이 된다.

• Archives of Pharmacal Research
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• 제25권5호
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• pp.617-620
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• 2002

Six compounds were isolated from the twigs of Ilex macropoda. Their structures were elucidated as betulinic acid, lupeol, betulone, betulin, erythrodiol and 11-oxo-erythrodiol by physicochemical and spectroscopic analysis. Among them, lupeol, betulone, erythrodiol and 11-oxo-erythrodiol were isolated for the first time from this plant.

• Archives of Pharmacal Research
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• 제10권2호
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• pp.132-141
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• 1987

New triterpenoid saponins, ilexosides A, D, E, J, K and O have been isolated form the root of Ilex pubescens. Chemical and spectroscopic studies have established their structures as shown in formulae 1, 2, 8, 11, 3, 4 and 5.

• Archives of Pharmacal Research
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• 제10권2호
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• pp.115-120
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• 1987

Methanol extract of Ilex pubescens roots prolonged bleeding time threefold, and inhibited the generation of malondialdehyde released during platelet aggregation inducted by thrombin. Through several purification procedures, its saponin, named ilexoside, was proved to be responsible for the antithrombotic activities of the plant. Ilexosides A, -D and -J and 24-carboxypomolic acid showed strong inhibitory activities on platelet aggregation induced by thrombin.

• Archives of Pharmacal Research
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• 제10권2호
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• pp.121-131
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• 1987

Four triterpenoids were isolated from the roots of Ilex pubescens : two new triterpenoids named pubescenolic acid (I) and pubescenic acid (II), and two known triterpenoids ilexolic acid (III) and oleanolic acid (IV). Chemical and spectroscopic studies have established I and II as 20-epipomolic acid and 24-carboxypomolic acid, repectively.

• 식물분류학회지
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• 제51권3호
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• pp.305-318
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• 2021

We report 14 species of flowering plants as new additions to the flora of Laos. These are Illex viridis (Aquifoliaceae), Capparis erycibe (Capparaceae), Euphorbia bokorensis (Euphorbiaceae), Exacum darae (Gentianaceae), Aeschynanthus cambodiensis (Gesneriaceae), Tetraphyllum roseum (Gesneriaceae), Utricularia gibba (Lentibulariaceae), Macrosolen brandisianus (Loranthaceae), Decaschistia siamensis (Malvaceae), Nyssa yunnanensis (Nyssaceae), Adenia penangiana var. penangiana (Passifloraceae), Pentaphylax euryoides (Pentaphylacaceae), Wikstroemia bokorensis (Thymelaeaceae), and Debregeasia wallichiana (Urticaceae). We discovered the species during a botanical survey of the Phou Khao Khouay National Biodiversity Conservation Area (PKKNBCA) of Lao PDR in 2015-2019. In addition, nine rarely collected flowering plant species in Laos are newly reported for the PKKNBCA.

• 한국환경생태학회지
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• 제10권2호
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• pp.211-239
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• 1997

1996년 2월부터 8월까지 총 3회 11일간 설악산 국립공원 외설악과 인근지역의 관속식물상을 조사한 결과, 101과 379속, 659종, 2아종 105변종 8품종 총 774종류(taxa)로 조사되었다. 이중에서 외설악 지역에는 89과 321속, 526종 2아종 89변종 3품종중 총 620종류(taxa), 점봉산 지역은 86과, 251속, 350종, 1아종 51변종 2품종 총 404종류(taxa)로 각각 조사되었다. 외설악 지역에서는 남쪽에서 자라는 개족도리와 대팻집나무의 자생지를 확인하였고, 점봉산 지역에서는 신포동의 산외, 관모봉 지역에서는 참배암차즈기 등 6종류의 희귀식물을 발견하였다. 확인한 북방인자의 식물로는 분비나무, 눈잣나무, 눈측백, 등대시호, 두메부추, 금강봄맞이, 만주송이풀, 말나리, 붉은인가목, 솜다리, 톱바위취 등 17종류, 남방인자의 식물로는 사람주나무, 대팻집나무, 때죽나무, 지리대사초, 개족도리, 암대극등 6종류로 조사되었다. 또한 겨울철 도로교통의 안전을 위하여 뿌린 바닷가 모래의 영향으로 갯씀바귀, 갯완두, 참골무꽃, 해당화 등 해안지역에 주로 생육하는 식물이 도로를 따라 산악 내부까지 침투하고 있음을 확인하였다.

• Archives of Pharmacal Research
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• 제14권4호
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• pp.352-356
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• 1991

The anti-platelet activity of ilexoside D isolated from the roots of Ilex pubescens Hook. et Arn. was investigated in in vitro and ex vivo models of platelet aggregation induced by ADP, thrombin or collagen in rats. In vitro ilexoside D inhibited more effectively platelet aggregation induced by ADP and thrombin than by collagen as compared with aspirin. Ex vivo ilexoside D also inhibited platelet aggregation induced by ADP and collagen, but not by thrombin, and the inhibitory action of ilexoside D was more effective than that of aspirin. However, in vitro ilexoside D inhibited very poorly the generation of malonyldialdehyde, which is known to be concomitantly released with thromboxane $A_2$ during platelet aggregation. These results suggest that the anti-platelet activity of ilexoside D may not be responsible for prostaglandin synthesis in platelets.

• 식물분류학회지
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• 제52권3호
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• pp.173-183
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• 2022

Through the collection of herbarium specimens in Bhutan over the years, new plant species are discovered nearly annually. Thus, this paper reports two new genera and 19 new records of flowering plant species from Bhutan. The new genera include Eurycorymbus of the family Sapindaceae and Homalium of the family Salicaceae. The new records of plant species are Eranthemum erythrochilum (Acanthaceae), Hemidesmus indicus (Apocynaceae), Ilex umbellulata (Aquifoliaceae), Canarium strictum (Burseraceae), Ehretia acuminate (Boraginaceae), Vaccinium sikkimense (Ericaceae), Nothapodytes foetida (Icacinaceae), Machilus edulis (Lauraceae), Grewia asiatica (Malvaceae), Hibiscus fragrans (Malvaceae), Cipadessa baccifera (Meliaceae), Baccaurea javanica (Phyllanthaceae), Canthiumera glabra (Rubiaceae), Homalium napaulense (Salicaceae), Eurycorymbus cavaleriei (Sapindaceae), Acmella radicans (Asteraceae), Silene latifolia (Caryophyllaceae), Cleome rutidosperma (Cleomaceae), and Cuphea carthagenensis (Lythraceae). Morphological determinations of the genera and species were carried out at the National Herbarium (THIM) of the National Biodiversity Centre of Bhutan. Brief descriptions of the species, phenology, and photo plates are provided in this annotated checklist.