무주나무

무주나무

https://daehyo49.tistory.com/7816487

무주나무(비공개)

https://daehyo49.tistory.com/7811378

 

학명: Lasianthus japonicus Miq.

분류: 꼭두서니과(Rubiaceae)

일어명: ルリミノキ(瑠璃実の木)

중국어명: 日本粗叶木

 

사진 : 2025.01.14 서귀포 남원읍 고살리숲길

 

 

언급은 되어 있지 않지만 측맥이 弧形으로 굽는 특징이 있는 것으로 보인다 

 

 

 

 

 

 

국립생물자원관 한반도의 생물다양성 설명

 

한라산 남쪽 계곡 상록수림 밑에 매우 드물게 높이 1~1.5m가량 자라는 상록 떨기나무이다. 가지는 가늘고 길며, 햇가지에 나는 짧은 털은 나중에 없어진다. 잎은 마주나며, 긴 타원형 또는 넓은 도피침형으로 길이 8~15cm, 폭 2~4cm, 가장자리는 밋밋하며 끝은 꼬리처럼 길다. 잎 앞면은 털이 없고 뒷면은 털이 거의 없거나 납작한 털이 조금 있다. 잎자루는 1cm쯤이다. 턱잎은 삼각형으로 끝은 뾰족하다. 꽃은 5~6월에 피는데 잎겨드랑이에서 여러 개가 달리며, 꽃자루는 거의 없다. 꽃부리는 흰색, 길이 1cm 정도, 5갈래로 갈라지며, 안쪽에 연한 털이 있다. 열매는 장과, 둥글며 지름 4~6mm, 남색으로 12월에 익으며, 4~5개의 씨앗이 들어 있다. 우리나라 제주도 한라산에 자생하며, 타이완, 일본, 중국 남부 등에 분포한다. 제주도내 자생지에 생육하는 무주나무 개체수는 30개체 미만으로 돈네코계곡 등에 자란다. ‘무주(武珠)나무’라는 국명은 수정목과 비슷하지만 뿌리가 염주처럼 굵어지지 않는다는 데서 유래한다.

 

FOC

 

Lasianthus japonicus Miquel, Ann. Mus. Bot. Lugduno-Batavi. 3: 110. 1867.

日本粗叶木 ri ben cu ye mu

 

Shrubs, 1-2 m tall; branches and branchlets glabrous or subglabrous to sparsely strigose on young branches. Petiole 3-10 mm, sparsely strigillose to strigose or subglabrous; leaf blade leathery or papery, lanceolate, lanceolate-oblong, or oblong, 9-15 × 2-3.5 cm, glabrous adaxially, glabrous to strigose or hirtellous abaxially, especially on lateral veins and nervules, base acute to obtuse, apex cuspidate or cuspidate-acuminate to long caudate; lateral veins 5-7 pairs or numerous; nervules reticulate; stipules generally persistent, triangular, 1-3 mm, glabrous to minutely hirsute to strigillose. Inflorescences congested-cymose, pedunculate to subsessile, densely strigillose; peduncle 1-2 mm; bracts 0.2-1 mm. Flowers sessile or subsessile. Calyx strigillose to glabrescent; hypanthium portion campanulate, 1-1.5 mm; limb 1-2 mm, 4- or 5-dentate; teeth short to well developed, linear. Corolla 13-14 mm at anthesis, glabrous outside or sometimes puberulent on lobes, villous inside; tube 9-10 mm; lobes 4 or 5, spatulate, 4-4.5 mm. Fruit globose, 5-6 mm in diam., glabrous; pyrenes 4 or 5. Fl. Apr-May, fr. Jun-Oct.

 

Forests, shaded and wet places; 200-2300 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [NE India, S Japan (Kyushu, Ryukyu Islands, Shikoku), Laos, N Vietnam].

 

This species is commonly collected in China. The leaf margin is often finely irregular, not crisped but actually undulate parallel to the looping tertiary venation that is near it. The leaves generally flush in a characteristic fashion, elongating but remaining rolled up and narrow, and are covered with notable sericeous pubescence on the exposed lower surfaces of the midrib and principal veins. This pubescence is often deciduous, leaving the mature lower leaf surface glabrous.

 

Lasianthus japonicus is a widely distributed species from E Asia to the Himalaya. Lasianthus japonicus subsp. japonicus occurs in SE China to Japan, below 1800 m, and basically in the Sino-Japanese floristic region delineated by C. Y. Wu (Bull. Univ. Mus. Univ. Tokyo 37: 1-9. 1998). Lasianthus japonicus subsp. longicaudus occurs in SW China and NE India in the Himalaya, at 1000-2300 m, i.e., in the Sino-Himalayan floristic region of Wu. They are a typical vicariant pair of subspecies. It may be surprising that L. lucidus var. caudisepalus from Assam, NE India, is found to be conspecific with L. japonicus subsp. japonicus. However, the geological history of E Asia gives an explanation. The formation of the vicarious distribution patterns of the Sino-Himalayan and Sino-Japanese regions is supposed to be related to the uplift of Himalaya in the Tertiary. Lasianthus japonicus subsp. longicaudus could have differentiated with the uplift of Himalaya becoming an altitudinal vicariant taxon of L. japonicus.

 

아종 검색표

 

1. Leaves usually long caudate at apex, lateral veins numerous, slender, very similar to nervules or subparallel secondary nerves;

calyx and corolla 4-merous; calyx teeth reduced, limb almost truncate at apex.

 

....................................................... subsp. longicaudus

1. Leaves cuspidate or cuspidate- acuminate at apex, lateral veins 5-7 pairs, ascending at an oblique angle, conspicuously

different from reticulate nervules; calyx and corolla 4-merous or usually 5-merous; calyx with well-developed triangular or

lanceolate teeth.

...................................................... subsp. japonicus

 

 

 

http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=242328368

 

세밀화

 

 

 

 

 

 

 

http://www.efloras.org/object_page.aspx?object_id=119912&flora_id=2