Search

Saxifraga yuparensis Nosaka (1974: 149–150) ≡ S. bronchialis L. subsp. funstonii (Small) Hultén var. yuparensis (Nosaka) T. Shimizu (1983: 356) Lectotype (designated here): [icon] in Nosaka, J. Fac. Sci. Hokkaido Univ. Ser. 5 Bot. 9 (2) (1974: 150, Fig. 11), Published as part of Tamura, Saya, Takahashi, Hideki, Shutoh, Kohtaroh, Sato, Ken, Sato, Hiroyuki, Shimamura, Takashi & Nakamura, Koh, 2022, Lectotypification of Saxifraga yuparensis Nosaka (Saxifragaceae), pp. 95-98 in Phytotaxa 543 (1) on page 97, DOI: 10.11646/phytotaxa.543.1.10, http://zenodo.org/record/6424269, {"references":["Nosaka, S. (1974) The Phanerogam Flora of Mt. Yupari, Prov. Ishikari, Hokkaido, Japan. Journal of the Faculty of Science, Hokkaido University Series 5 Botany 9 (2): 55 - 300.","Shimizu, T. (1983) The new alpine flora of Japan in color II. Hoikusha, Tokyo, 331 pp."]}

We investigated the effects of fortifying a diet of Chlorella vulgaris with Selenium (Se) on sexual and asexual reproduction of rotifers in the Brachionus plicatilis species complex: i.e. two strains of B. plicatilis sensu stricto and one of Brachionus rotundiformis. These rotifers were cultured for 8?10 days on one of three different diets that were adjusted to provide the same dry weight of food: non-fortified Chlorella, Se-fortified Chlorella, and Nannochloropsis oculata. B. plicatilis (Makishima strain), which is obligatorily asexual, showed no difference in population growth rate among the three different diets (r?=?0.55?0.61). On the other hand, B. plicatilis (NH17L strain), which reproduces by cyclical parthenogenesis, showed higher population growth (r?=?0.25) and also higher rates of fertilization (35.9%) and absolute resting egg production (2803.9?eggs/g food) with the Se-fortified Chlorella diet than with other foods. Although B. rotundiformis (Kochi strain), which also exhibits cyclical parthenogenesis, showed no differences in population growth among the three different diets (r?=?0.42?0.48), sexual reproduction parameters were different depending on the feeding regime. The highest mixis (26.2%), fertilization (72.6%), and resting egg production (3489.9?eggs/g food) were observed with the Se-fortified Chlorella diet. We posit that the effect of Se-fortified diet was greater on the resting egg production by enhancing male fertility than on population growth., International Review of Hydrobiology, 99(1-2), pp.161-165; 2014

Portulaca okinawensis Walker & Tawada var. okinawensis Type:��� JAPAN. The Ryukyus, the Okinawa Islands, Okinawa Island, Onna, 2 October 1949, Tawada 2221 (holotype US!; available from: http://collections.mnh.si.edu/search/botany/?ti=3). Description: ���Herbs perennial, 3���5 cm tall. Stems not articulated, diffuse, branched basally, ca. 1 mm thick; basal stems woody, prostrate, upper stems herbaceous, upright, reddish green. Root fleshy, much-branched. Leaves spirally arranged to alternate, subsessile, without axillary hairs; leaf blade 2���3 mm thick, oblong to obovate, 5���8 mm long, base obtuse, apex obtuse or rounded. Flowers solitary, about 10���15 mm in diameter. Sepals 2, ovate-deltate, about 2 mm long. Petals 5, obovate to nallowly obovate, orangey yellow, mostly without margins overlapping. Stamens 12���15. Ovary ovoid. Stigma usually trilobed or tetralobed; capsule glossy, 2���4 mm long, 2���3 mm wide. Distribution and habitat:���The Ryukyus, the Okinawa Islands, Okinawa, Aka, Geruma, Tonaki islands. Coastal rocky slopes, xeric, saline, and exposed to direct sunlight. Portulaca okinawensis has also been recorded from Aka, Geruma, Yakabi, Tonaki, Aguni, and Kume islands of the Okinawa Islands (Shinjo & Shinzato 2006). We have not collected samples from these islands. We examined a herbarium specimen of P. okinawensis collected from Yakabi Island (Miyagi 8414, RYU, collected in 1978) but we could not identify it at variety level because of the difficulty in counting of the number of stamens and the discoloring of the petals and stems. Additional specimens examined:��� JAPAN. The Ryukyus, the Okinawa Islands: Okinawa Island, Onna (OK1), 10 August 2010, Kokubugata 12873���12878 (TNS); Okinawa Island, Onna (OK2), 20 September 2007, Kokubugata 9988, 9989, 10018 (TNS); Okinawa Island, Onna (OK3), 1 September 2010, Kokubugata 12886���12891 (TNS); Okinawa Island, Yomitan (OK4), 29 August 2010, Kokubugata 12867��� 12872, 12879���12885 (TNS); Aka Island, 30 August 2012, Kokubugata 15161���15165 (TNS); Geruma Island, 30 August, 2012, Kokubugata 15166���15170 (TNS); Tonaki Island, 31 August 2012, Kokubugata 15179��� 15183 (TNS)., Published as part of Kokubugata, Goro, Nakamura, Koh, Hirayama, Yumiko & Yokota, Masatsugu, 2013, Taxonomic reexamination of Portulaca okinawensis (Portulacaceae) in the Ryukyu Archipelago of Japan based on molecular and morphological data, pp. 11-22 in Phytotaxa 117 (1) on page 20, DOI: 10.11646/phytotaxa.117.1.2, http://zenodo.org/record/5079154, {"references":["Shinjo, K. & Shinzato, T. (2006) Portulaca okinawensis Walker et Tawada. In: Okinawa Prefecture (ed.) Red Data Okinawa, revised version. Okinawa Prefecture, Naha, p. 72."]}

Portulaca okinawensis Walker & Tawada var. amamiensis Kokubugata, Koh Nakam. & Yokota, var. nov. Type:��� JAPAN. The Ryukyus, the Amami Islands, Amami Island, Yamato, 6 September 2012, Kokubugata 15198 (holotype TNS!). Diagnosis: ���Differt a var. okinawensi staminibus 12���15, petalis citrinis, obovatis vel oblanceolatis, caulibus viridibus. Description: ���Herbs perennial, 3���5 cm tall. Stems not articulated, diffuse, branched basally, ca. 1 mm thick; basal stems woody, prostrate, upper stems herbaceous, upright, bright green. Root fleshy, much-branched. Leaves spirally arranged to alternate, subsessile, without axillary hairs; leaf blade 2���3 mm thick, oblong to obovate, 5���8 mm long, base obtuse, apex obtuse or rounded. Flowers solitary, about 10���15 mm in diameter. Sepals 2, ovate-deltate, about 2 mm long. Petals 5, obovate, emarginate, rotund to obtuse, lemon-colored, with margins overlapping. Stames 12���15. Ovary ovoid. Stigma usually trilobed or tetralobed; capsule glossy, 2���4 mm long, 2���3 mm wide. Etymology:��� The epithet refers to the Amami Islands, the locus classicus. Distribution and habitat:���Endemic to the Amami Islands (the Ryukyus), in Amami and Tokuno-shima islands. Coastal rocky slopes, xeric, saline, and exposed to direct sunlight. In Kakeroma Island, being an islet situated in the Amami Island, P. okinawensis has been recorded. However, we could not obtain and investigate samples from the island. IUCN Red list category: ���It can be included in the Data Deficient (DD) category of IUCN Red List categories (IUCN 2010) as there are inadequate information to make a direct or indirect assessment of its risk of extinction based on its distribution and/or population status. Additional specimens examined (paratypes):��� JAPAN. The Ryukyus, the Amami Islands: Amami Island, Amami (AM1), 3 November 2010, Kokubugata 12939���12942, 7 September 2012, Kokubugata 15434���15443 (TNS); Amami (AM2), 18 October 2008, Kokubugata 11096���11100 (TNS); Yamato (AM3), 6 September 2012, Kokubugata 15197���15202; Uken (AM4), 18 October 2008, Kokubugata 11081���11085, 11102 (TNS); Tokuno-shima Island, Amagi (TK), 17 October 2007, Kokubugata 12140���12144 (TNS)., Published as part of Kokubugata, Goro, Nakamura, Koh, Hirayama, Yumiko & Yokota, Masatsugu, 2013, Taxonomic reexamination of Portulaca okinawensis (Portulacaceae) in the Ryukyu Archipelago of Japan based on molecular and morphological data, pp. 11-22 in Phytotaxa 117 (1) on page 21, DOI: 10.11646/phytotaxa.117.1.2, http://zenodo.org/record/5079154, {"references":["IUCN (2010) The IUCN Red list of the threatened species, version 2010.4. Available from: http: // www. iucnredlist. org (accessed: 2 June 2013)."]}

Kokubugata, Goro, Nakamura, Koh, Hirayama, Yumiko, Yokota, Masatsugu (2013): Taxonomic reexamination of Portulaca okinawensis (Portulacaceae) in the Ryukyu Archipelago of Japan based on molecular and morphological data. Phytotaxa 117 (1): 11-22, DOI: 10.11646/phytotaxa.117.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.117.1.2

琉球大学21世紀COEプログラム「サンゴ礁島嶼系の生物多様性の総合解析」平成20年度成果発表会（平成21年3月14日開催） 講演・特別講演会場：理系複号棟102号室，ポスター発表会場：琉球大学50周年記念館1F