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Details for: Luzula jimboi subsp. atrotepala |
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Search restricted to Kirschner, J. et al. 2002, Species Plantarum: Flora of the World Part 6-8. Check for other Sources using this name
| Source: |
Kirschner, J. et al. 2002, Species Plantarum: Flora of the World Part 6-8. [IOPI preferred view]
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| Name: |
Luzula jimboi subsp. atrotepala Z.Kaplan |
| Nomencl. ref. |
Preslia vol. 73, 65. 2001. |
| Rank: |
Subspecies |
| Status: |
ACCEPTED |
| Taxonomy (this taxon is included in): |
Familia - Juncaceae
Genus - Luzula DC.
Subgenus - Luzula subgen. Pterodes (Griseb.) Buchenau
Species - Luzula jimboi Miyabe & Kudo
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| Description: |
Basal leaves 2.5–13.5 cm × 1.5–4.5 mm. Inflorescence compound, with often two (or more) secondary pedicels on some of the primary pedicels; secondary/primary pedicels ratio
(0.2–) 0.3–1.4. Tepals 1.6–2.5 (–2.8) mm long, purple to blackish castaneous brown, without or with only narrow hyaline margins. Anthers 0.3–0.9 mm long, ovate-linear, shorter than filaments; anther/filament ratio 0.4–0.9. Capsule distinctly exceeding tepals. Seeds 1.0–1.4 mm long, with apical appendages 0.2–0.9 (–1.4) mm long; seed/appendage ratio 1.4–6.0. Fig. 35. |
| Geography: |
38. JAPAN: Honshu, Pref. Iwate, Prov. Rikuchyuu, Isawa-gun, Wakayanagi-mura, Mt Yakeishi-dake, near summit, c. 1100–1400 m, 24 Jul 1958, M.Furuse s.n. (S); Honshu, Pref. Nagano, Prov. Shinano, Kita-adzumi-gun, Hakuba-mura, Mt Shirouma-yari, c. 2900 m, 12 Aug 1949, M.Furuse 21220 (K); [Honshu] Prov. Kaga, [Ishikawa-ken] Mt Hakusan [Shirayama], 19 Aug 1947, G.Nakai 3648 (KYO); [Honshu] Ecchu [Toyama Pref.], Mt. Tateyama, Shishibana, 3 Aug 1931, Y.Mitabi s.n. (KYO); [Honshu] Ecchu [Toyama Pref.], Mt. Tateyama, 25 Jul 1928, Sakai (KYO); [Honshu] Ecchu [Toyama Pref.], Kurobe, Oguro mine,
24 Jul 1935, J.Ohwi 8151 (KYO); [Honshu] Iwashiro [Fukushima Pref.], Mt. Iide, 22 Aug 1934, S.Suzuki (KYO); [Honshu, Nagano Pref.] Mt. Shirouma, alpine zone, 17 Aug 1922, G.Koidzumi 4147 (KYO); [Honshu, Nagano Pref.] Mt. Asahi, alpine zone, 20 Aug 1922, G.Koidzumi 4376 (KYO); [Honshu] Fukui Pref., Ono city, Mitsumine, 2000 m, 26 Jul 1970, S.Watanabe 10259 (KYO). |
| Notes: |
The present concept of subsp. atrotepala is equivalent to L. rostrata var. rostrata sensu J.E.Ebinger, Mem. New York Bot. Gard. 10(5): 301 (1964). The recently examined type of the name L. rostrata Buchenau proved to be referable to the species currently known as
L. plumosa E.Mey. [Z.Kaplan, Preslia 73: 64 (2001)]. The plants of L. jimboi subsp. atrotepala with rather southern range are rarer than the type subspecies and are confined in their distribution to the central part of Honshu with rare disjunct occurrences in northern Honshu., Most herbarium specimens identified as L. rostrata actually refer to L. jimboi subsp. jimboi. However, specimens of L. plumosa subsp. plumosa, L. jimboi subsp. atrotepala, and, outside of Japan, even L. rufescens have been in part referred to by that name., In Japanese works [e.g., Y.Satake, J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot., 4: 193 (1933); F.G.Meyer & E.H.Walker, Ohwi’s Fl. Jap.: 273 (1984)], two species have been often distinguished, mainly on the basis of anther/filament ratio, namely L. plumosa (incl. L. japonica) and “L. rostrata” (here treated as L. jimboi). While the value “anther as long as or longer than filament” has been generally given for L. plumosa, “anther shorter than filament” has been claimed for “L. rostrata”. However, this simple distinction does not work, as both L. plumosa and L. jimboi show considerable overlap in variation ranges of this character (L. plumosa
0.6–2.3, L. jimboi 0.4–1.8). This is the main reason why “L. rostrata” has been erroneously reported from almost the entire distribution range of L. plumosa, including areas as far distant as Yunnan, China, and Darjeeling, India. |
| SourceHigherTaxon from IOPI: |
Juncaceae |
| Taxon number in Juncaceae SP treatment
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114b. |
| TDWG Distribution Code: |
38: JAP. |
| Type: | T: [Japan, Honshu] Pref. Fukui, Katsuyama city, Obaratoge, 1250 m, 24 Jun 1990, S.Watanabe 32502; holo: KYO. |
| Distribution table: |
| Asia-Temperate |
Eastern Asia |
Japan |
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This page last updated: Dienstag, 21. August 2007
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