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Eleocharis parvula (Roem. & Schult.) Bluff, Nees & Schauer (Cyperaceae), was found in Ganghwa-gun, Incheon Metropolitan City in Korea. This species is distinguished from related taxa in Korea by its small fusiform tubers, culms without septa when dry, 3-fid stigmas and style base confluent with the apex of achene. This taxon was named `Gaet-ba-neul-gol` in Korean based on its habitat. We provide its description, illustrations, photographs and a key to the related taxa in Korea.

The flora of Jeokgeunsan Mountain forest genetic resources protection zone was identified and the major flora distribution examined. From May 2011 to September 2012, the flora was made up of taxonomic groups including 84 families, 283 genera, 432 species, four subspecies, 59 varieties, and six forma. Eleven families and 16 taxonomic groups were endemic plants to Korea, and 13 taxonomic groups were rare flora of Korea designated by the National Forest Service. Eight families and 24 taxonomic groups for naturalized plants were confirmed and the naturalization rate was 4.8%. Out of 501 taxonomic groups, 404 were resource plants of which 208 (41.5%) were edible plants, 152 (30.3%) were medicinal plants, 199 (39.7%) were herbaceous plants, and 55 (11.0%) were ornamental plants.

The vascular flora in the Mt. Cheongtae area, located Pyeongchang-gun in Gangwon-do, were surveyed 14 times from April of 2008 to October of 2011. The result of this survey revealed 663 taxa in total, comprising 89 families, 342 genera, 577 species, 6 subspecies, 73 varieties and 7 forms. In the flora of this area, 19 taxa were Korean endemic plants and 24 taxa were rare and endangered plants of Korea. The floristic regional indicator plants found in this area were 136 taxa comprising 4 taxa of grade V, 16 taxa of grade IV, 31 taxa of grade III, 41 taxa of grade II and 44 taxa of grade I. Naturalized plants in Korea numbered37 taxa. In addition, 485 taxa were categorized by usage into 8 groups, as follows: 240 edible, 8 fiber, 177 medical, 60 ornamental, 245 pasturing, 2 industrial, 12 dyeing and 16 timer plants.

An unrecorded species, Carex aequialta Kuk. (Cyperaceae), was found in Yecheon-gun, Gyeong-sangbuk-do and Jeju-si, Jeju-do. This species is distinguished from related taxa, C. maximowiczii Miq., C. suifu-nensis Kom., C. phacota Spreng., C. dimorpholepis Steud., C. shimidzensis Franch. and C. tegulata H. Lev. &Vaniot, by having suberect lateral spikes, awnless pistillate scales, short rhizomes and corymblike inflores-cences. This taxon was named ‘Mul-kko-ri-sa-cho’ in Korean based on its external appearances and habitat. Weprovide its description, illustrations, photographs and the key of related taxa in Korea. Keywords: Carex aequialta, sect. Phacocystis, Carex, Cyperaceae, new record 적 요: 사초과의미기록종인물꼬리사초(Carex aequialta Kuk.)가경상북도예천군과제주도제주시에서 발견되었다. 이 종은 아직립하는 측소수, 망(까락)이 없는 자인편, 짧은 지하경, 산방형으로 배열하는 화서를 가져근연종인 왕비늘사초(C. maximowiczii Miq.), 가는비늘사초(C. suifunensis Kom.), 비늘사초(C. phacotaSpreng.), 이삭사초(C. dimorpholepis Steud.), 산꼬리사초(C. shimidzensis Franch.) 및 구슬사초(C. tegulata H.Lev. & Vaniot)와 구분된다. 국명은 외부형태와 생육지를 고려하여 ‘물꼬리사초’로 신칭하였고, 이에 대한 기재, 도해, 사진 및 근연분류군과의 검색표를 제시하였다.

This study was carried out to elucidate floristic data of Chirisan National Park by performing practical field investigation for 1· year and literatures survey simultaneously in 2004. The data from field study were yielded based on voucher specimens. Total number and components of flora of Chirisan National Park is revealed as 1,825 taxa. Among 1,825 taxa, 708 taxa were identified in this field study, and these were comprised 37 orders, 109 families, 382 genera, 590 species 3 subspecies 95 varities 20 forms. Unconfirmed taxa in field but recorded previous literatures were 1,117 taxa, which consist of 41 orders 130 families 500 genera 901 species 9 subspecies 140 varities 67 forms. In conclusion, there may be provisionally 1,825 (708+1,117) taxa in Chirisan National Park. The 43 taxa were firstly found out in this field study. In the floristic data from field study, the number of Korean endemic plants were 31 taxa, the rare and endangered plants which was designated by Korea Forest Service were 21 taxa, the taxa that is more than the t비rd degree among the floristic regional indicator plants which was designated by Korean Ministry of Environment were 40 taxa, and naturalized alien plants to Korea were 27 taxa respectively. Among 1,117 taxa which were not found in this study but recorded in 22 previous literatures, the number of Korean endemic plants were 45 taxa, the rare and endangered plants which was designated by Korea Forest Service were 45 taxa, the taxa that is more than the third degree among the floristic regional indicator plants which was designated by Ministry of Environment were 121 taxa, and naturalized alien plants to Korea were 31 taxa. It can be inferred that the vegetation of Chirisan National Park was changing by some factors and valuable plant resources were tend to diminishing by such as human interference and developments.

We investigated the Gogunsan Islands from April 2012 to October 2012 for plant diversity. The vascular plants of Gogunsan Islands were recorded as total 565 taxa, 105 families, 333 genera, 502 species, 3 subspecies, 50 varieties, and 10 forms. Rare plants were observed 9 taxa. Korean endemic plants were 2 taxa, floristics special plants were 18 taxa, and naturalized plants were 72 taxa. Gogunsan Islands flora changes are in process slowly compared to earlier work thus, continuing interest and appropriate measures should be encouraged.

The vascular of Daebudo and its adjacent regions, located in Ansan-si, Gyeonggi-do, is surveyed from Jun. 2009 to Oct. 2011. The number of the vascular plant taxa based on voucher specimens is 708 total which belongs to 107 families, 378 genera, 612 species, 5 subspecies, 80 varieties and 10 forms respectively. Among them, 2 taxa of specially designated plants announced by the Ministry of Environment. Owing to their unusual phytogeography and low number of populations, the taxa Crypsinus hastatus (Thunb.) Copel., Penthorum chinense Pursh and Trachomitum lancifolium (Russanouv) Pobed. were considered the most important. Based on these results, it is clear that appropriate plans to conserve the natural habitat of Daebudo and its adjacent regions must be made immediately.