• 제목/요약/키워드: Pteridophytes

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The East Asiatic genera and endemic genera of the Pteridophytes in China

  • Zhang, Xian-Chun
    • 식물분류학회지
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    • 제33권4호
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    • pp.309-338
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    • 2003
  • China, the largest country in East Asia, has a pteridoflora of over 2000 species, belonging to about 220 genera in 63 families. There are about 28 East Asiatic genera of Pteridophytes and 6 genera specifically endemic to China. Most of these genera are oligotypic or monotypic groups. Five distribution patterns of the East Asiatic genera are distinguished, i.e., I. Sino-Himalayan type, 10 genera; II. Sino-Japanese type, 4 genera; III. Japan-Himalayan type, 6 genera; IV. Temperate East Asiatic type, 3 genera; and V. Tropical East Asiatic type, 5 genera. The Chinese endemic genera are mainly distributed in southwestern China. The distribution, ecology, taxonomy, and systematics of these genera are discussed.

Enumeration of edible and useful ferns (Pteridophytes) in the Bhutan Himalayas

  • Rinchen DORJI;Choki GYELTSHEN;PHUENTSHO PHUENTSHO;Karma Ugyen WANGMO;Kencho DORJI
    • 식물분류학회지
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    • 제52권4호
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    • pp.235-245
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    • 2022
  • Bhutan is endowed with rich biodiversity with several edible and useful fern species. Ferns have been used by local communities for centuries as vegetables, ethnobotanical artifacts, and as medicines. Owing to the limited study of edible and useful pteridophytes in the country, the knowledgebase remains poor. In this study, we attempt to document edible and useful fern species in the country scientifically while also providing an annotated checklist.

권백(Selaginella involvens) 물 추출물의 혈관 형성억제 및 혈관내피세포 이주 억제 효과 (Inhibitory Effects of Water Extract of Selaginella involvens on the Tube Formation and Invasion of Human Umbilical Vein Endothelial Cells)

  • 고유진;박승희;이용화;박병철;허종현;민용득;김재기;김정애
    • 약학회지
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    • 제51권1호
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    • pp.51-55
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    • 2007
  • Among pteridophytes, Selaginella involvens Spring and Equisetum orvense L. are used in folk medicine in Eastern Asian countries including Korea. The water extracts from Selaginella involvens spring (SW) and from Equistum arvense L (EW) did not affect viability of human umbilical vein endothelial cells (HUVECs). However, SW dose-dependently inhibited tube formation and migration of HUVECs, whereas EW did not. These results suggest that the water extract from Selaginella involvens Spring may have anti-angiogenic activity.

지리산국립공원의 양치식물상 (The Pteridophytes Flora of Jirisan National Park, Korea)

  • 권재환;신민경;이강협;송호경
    • 한국환경생태학회지
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    • 제27권5호
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    • pp.529-543
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    • 2013
  • 지리산국립공원내 양치식물상은 21과 39속 123종 11변종 1품종 총 135분류군이 기록되었다. 현장조사에서 Lycopodium selago L.(좀다람쥐꼬리) 등 22분류군이 새로 확인되었고 문헌상 존재하는 38분류군의 양치식물은 확인할 수 없었다. 양치식물의 생활형을 살펴보면 반지중식물(H)이 60분류군 (44.8%), 지중식물(G)이 35분류군(26.1%), 지표식물(Ch)이 18분류군(13.4%), 착생식물(E)이 14분류군(10.5%), 수생 수습식물(HH)이 6분류군(4.5%), 일년생식물(Th)이 1분류군(0.8%)로 각각 나타났다. 잎의 계절성 양상에 따른 구분 결과로는 하록성 67분류군(50%), 상록성 62분류군(46.3%), 동록성 3분류군(2.2%)로 조사되었다.

한라산 천연보호구역의 식물상과 생활형 (Flora and Life Form Spectrum of Hallasan Natural Reserve, Korea)

  • 김찬수;고정군;문명옥;송관필;현화자;송국만;김문홍
    • 한국환경과학회지
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    • 제16권11호
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    • pp.1257-1269
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    • 2007
  • This study was performed to get more knowledge on the flora and their life form spectrum in the Hallasan Natural Reserve. The vascular plants include 83 species 35 genera 12 families of pteridophytes, 5 varieties 5 species 3 families of gymnosperm, 100 taxa in 2 varieties 98 species 58 genera 8 families of monocotyledon and 362 taxa in 3 forma 10 varieties 349 species 186 genera 65 families of dicotyledon in Hallasan Natural Reserve. The total of vascular plants is 550 taxa in 3 forma 11 varieties 536 species 284 genera 88 families. Among these, 204 species in total including 19 species of pteridophytes, 2 species of conifers, 45 species of monocotyledon and 138 species of dicotyledon are found only in the Hallasan Natural Reserve. The pteridophyte-quotient is 4.52 and floristic richness is 1.94. In the analysis of life form spectrum, there are 190 species (34.5%) of hemicryptophytes and 122 species (22.2%) of geophytes so that two life forms take large portions, 312 species (56.7%) of the vegetation in Hallasan Natural Reserve. Megaphanerophytes and microphanerophytes take 14.5% including 80 species followed by 83 species (15.1%) of nanophanerophytes, 42 species (7.6%) of chamaephytes, 29 species (5.3%) of therophytes, 24 species (4.4%) of hydrophytes and 18 species (3.3%) of epiphytes. According to the life form spectrum hemicryptophytes dominated high portions, which suggests Hallasan Natural Reserve has hemicryptophytic climate and similar to middle parts in the Korean Peninsular. The differences, however, were noticed by that it has more chamaephytes and less therophytes than that of the Peninsular and partially shows the characteristics of artic or subalpine climate.

인공 배양토 종류가 봉의꼬리, 도깨비고비, 부싯깃고사리의 생육에 미치는 영향 (Effects of Culture Soil Combinations on Growth of Pteris multifida, Cyrtomium falcatum and Cheilanthes argentea)

  • 유동림;이현숙;남춘우;김수정;서종택
    • 한국자원식물학회지
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    • 제19권4호
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    • pp.517-520
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    • 2006
  • 봉의꼬리에 있어서 생육은 일반상토인 모래: 마사토 : 부엽토(2:5:3)와 피트모스 : 이끼(5:5) 조합에서 많았으므로 인공상토로는 피트모스에 이끼를 덮은 조합이 유리한 것으로 나타났다. 도깨비고비의 경우에는 전체적으로 배양토 적응성이 높게 나타났으며 역시 피트모스 : 펄라이트(7:3) 조합에서 생육량이 가장 많았다. 그러나 바크와 톱밥이 들어간 배양토에서는 생육이 저조하였다. 부싯깃고사리의 경우 초장과 엽수의 생육으로 볼 때 모래 : 마사토 : 부엽(2:5:3) 조합이 가장 크고 많았으며 그 다음이 피트모스 : 펄라이트(7:3, 5:5) 조합 순이었다.

The first record of the rare fern Pteris griffithii (Polypodiales: Pteridaceae: Pteridoideae) in the Bhutan Himalayas

  • DORJI, Rinchen;DEMA, Sangay;NIROLA, Mani Prasad;GYELTSHEN, Choki
    • 식물분류학회지
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    • 제52권1호
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    • pp.24-28
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    • 2022
  • Pteris griffithii Hook., one of the rarest fern species on the Indian subcontinent, is reported from Bhutan for the first time. The identity of this species was confirmed through morphological determination at the National Herbarium (THIM) of the National Biodiversity Centre (NBC) of Bhutan. It was found only in one location, in Gyelpozhing in eastern Bhutan, at an elevation of 521 m a.s.l. on 10 January 2016. Given that a very limited study of this species was conducted, the knowledge baseline with regard to its distribution is poor. It is also reported that this species has not been found for several years. The species is also considered to be very rare or critically endangered in some countries; however, there are no assessments on the International Union for Conservation of Nature (IUCN) Red List for this particular species. This paper attempts to provide baseline information considering its rarity and data deficiency. This species is also reported from the adjacent neighboring Indian state of Arunachal Pradesh as very rare, and also from Myanmar; however, confirmation of its presence in China is not clear at this time. Therefore, considering its data deficient status, we attempt to document it scientifically to create a knowledgebase pertaining to this particular species. Concurrently, this species merits further research to understand its distribution patterns in Bhutan and any related anthropogenic threats.

제주도 난대상록수림에서 착생식물의 다양성 연구 (Diversity of Epiphyte in the Warm Temperate Evergreen Forest. Jejudo)

  • 송국만;강영제;현화자;변광옥
    • 한국환경과학회지
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    • 제22권1호
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    • pp.99-107
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    • 2013
  • This study surveyed the distribution and characteristics of epiphytes and host trees in Jejudo's warm-temperate evergreen forests area. The gathered data will be used for evaluating ecological changes according to climate change. The study found 46 species of epiphytes in Jejudo; 12 of which were species of pteridophytes and 5 species of orchids, totaling 17 species of epiphytes. The appearance frequency was the greatest with Lepisorus thunbergianus, followed by Lemmaphyllum microphyllum and Lepisorus onoei. The area with the greatest diversity of epiphytes was nutmeg tree forests which have the largest number of 2.89 average species. Lemmaphyllum microphyllum had the greatest percent cover of the epiphytes whose importance was found to be the greatest. The factors involved were the epiphytes' diversity index (0.64), maximum species diversity (1.23), evenness (0.52), and dominance (0.48). The study has noted the distribution characteristics of epiphytes according to altitudes above sea level. The Lemmaphyllum microphyllum can survive at an altitude of 600 m above sea level, Lepisorus thunbergianus at 200 - 1,400m above sea level, Lepisorus onoei. at 400 - 1,000 m, and Gonocormus minutus at an altitude above 800 m. The host trees, consisting of Quercus serrata, Castanopsis cuspidata var. sieboldii, and Carpinus laxiflora, stands at 2-19 m high and 2.5 - 120 cm wide, showing diverse kinds of trees and sizes. Jejudo's warm-temperate evergreen forests have lower epiphyte diversity compared with those of subtropical and tropical areas in Japan and China. Based on the characteristics of the host trees order, epiphytes' distribution associated with the altitude above sea level was typical.

한국산 미기록 양치식물 : 큰별고사리 [Cyclosorus penangianus (Hook.) Copel.] (처녀고사리과), 오름깃고사리 [Pteris fauriei Hieron.] (봉의꼬리과) (Two unrecorded fern species from Korean flora: Cyclosorus penangianus (Hook.) Copel. (Thelypteridaceae) and Pteris fauriei Hieron. (Pteridaceae))

  • 문명옥;윤나래;라은화;임진아;김대신;김찬수
    • 식물분류학회지
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    • 제44권4호
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    • pp.257-260
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    • 2014
  • 제주도 서귀포시 동홍동에서 자라는 것으로 확인된 큰별고사리[Cyclosorus penangianus (Hook.) Copel.]와 제주도 안덕면 광평리 오름 일대에서 발견된 오름깃고사리[Pteris fauriei Hieron.]를 채집하여 국내 미기록종으로 보고하였다. 큰별고사리는 국내에 분포하는 별고사리[C. acuminatus (Houtt.) Nakai], 검은별고사리[C. interruptus (Willd.) H.Ito], 탐라별고사리[C. dentatus (Forssk.) Ching]와 달리 포막이 전혀 없으며, 각 맥과 열편의 만입부에서 유합하는 맥의 수가 4개 이상으로 속내 다른 분류군과 뚜렷하게 구별된다. 오름깃고사리는 봉의꼬리속 다른 분류군과 달리 최종열편이 전연이고, 맥이 가장자리에 닿으며, 엽병 인편의 가장자리가 막질성인 점으로 뚜렷이 구별된다. 미기록 두 분류군에 대해 형질을 기재하고 사진 및 근연 분류군 간의 차이를 검색표로 제시하였다.