Begonia longgangensis: Difference between revisions

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== Begonia longgangensis ==
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         | region = Guangxi Zhuangzu Autonomous Region, China
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         | year_published = N/A
         | species = Begonia longgangensis
         | Date_of_Origin = N/A
         | region = Southwestern Guangxi, China
         | plant_type = Monoecious Herb, Rhizomatous Initially and Becoming Stoloniferous
        | country = China
         | Chr_2n = 30, 45
         | year_published = 2013
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         | Date_of_Origin =  
         | plant_type = Rhizomatous
        | section = Coelocentrum
         | Chr_2n = 2n = 30
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=== Species Information ===
=== Species Information ===


==== Description ====
==== Classification and Distribution ====
- **Growth Habit:** Monoecious herb, rhizomatous initially and becoming stoloniferous.
Begonia longgangensis is a rhizomatous herbaceous plant species discovered in southwestern Guangxi, China.
- **Rhizomes:** 1–2 cm thick, sending out stolons to 150 cm or longer, 0.5-0.7 cm thick, villous, with internodes 8-13(−17) cm long.
 
- **Stipules:** Eventually deciduous, ovate-triangular, 1–1.8 cm long, 1–1.2 cm wide, with margin entire, strongly keeled, abaxially hairy along midrib, and an apex aristate, with an arista of 0.4-0.7 cm long.
==== Habitat ====
- **Leaves:** Alternate, petioles terete, (6-)9-18(−25) cm long, 0.7 cm thick, initially green or reddish, white villous when young, turning brown tomentose and glabrescent. Leaf blade is asymmetric, broadly ovate to suborbicular, (10-)14.5-20 cm long, (7-)10.5-15 cm wide, with an acuminate apex and a strongly obliquely cordate base. The margin is initially serrulate and shortly ciliate, becoming repand when mature. Leaves are subcoriaceous, adaxially green, with a sparsely reddish-scabridulous surface and minute processes. Abaxially, leaves are pale and tomentose on veins. Juvenile leaves may be smaller.
This species is known only from the type locality in Longzhou County, Longgang Nature Reserve, Guangxi, China. It typically grows on jagged limestone rocks in evergreen broadleaf forests.
- **Inflorescences:** Axillary, arising directly from rhizome or stolons, with dichasial cymes branched 3–4 times. Peduncles are 9–14 cm long and glabrous. Bracts are caducous.
- **Staminate Flower:** Pedicel is 1.2-1.5 cm long. Tepals number 4, with outer 2 broadly ovate and pinkish (1–1.4 cm long, 1.2-1.4 cm wide), and inner 2 elliptic and white (0.8-1.2 cm long, 0.4-0.5 cm wide). Androecium is actinomorphic and spherical, measuring about 0.5 cm across, with 40–60 stamens. Filaments are fused into a column about 0.2 cm long, and anthers are 2-locular, obovate, and have an obtuse apex.
- **Carpellate Flower:** Pedicel is 1.4-1.9 cm long. Tepals number 3, with outer 2 broadly ovate to suborbicular and pinkish (0.7-1.2 cm long, 0.8-1.2 cm wide), and inner 1 elliptic and white (0.6-1 cm long, 0.3-0.5 cm wide). The ovary is trigonous-ellipsoid, measuring 0.7-1.1 cm long and 0.3-0.5 cm across (wings excluded), reddish and glabrous, with 3 unequal wings. Lateral wings are narrower and measure 0.2-0.3 cm tall, and an abaxial wing is crescent-shaped and measures 0.3-0.5 cm tall. Styles number 3, fused at the base, and are about 0.5 cm long, with a stigma that is spirally twisted.
- **Capsules:** Nodding, 0.9-1.3 cm long and 0.5 cm across (wings excluded), with an apex having persistent tepals. Wings are unequal, with lateral wings measuring 0.3 cm tall and an abaxial wing that is crescent-shaped and measures 0.3-0.6 cm tall. Seeds may be plump or abortive.


==== Distribution and Ecology ====
==== Characteristics ====
This stoloniferous herb grows on jagged limestone rocks in evergreen broadleaf forest. It is known only from the type locality in Longzhou County, Longgang Nature Reserve, Guangxi, China.
Begonia longgangensis has broadly ovate to suborbicular leaves that are smaller than similar species like ''Begonia liuyanii''. The leaf adaxial surface is sparsely reddish-scabridulous with minute processes, and the abaxial surface is tomentose on veins.


==== Phenology ====
==== Flower Details ====
Flowering occurs from March to June, and fruiting occurs from May to August.
The inflorescences of Begonia longgangensis are dichasial cymes with pink flowers, and the peduncles are glabrous.


==== Etymology ====
==== Etymology ====
The specific epithet "longgangensis" is derived from the type locality, Longgang Nature Reserve, Guangxi.
Information about the etymology of the species name, if available, should be included here.


==== Notes ====
==== Comparison to Similar Species ====
Begonia longgangensis shares some similarities with B. liuyanii but can be distinguished by various characteristics, including stolon formation, smaller leaves, and different leaf surfaces and inflorescence characteristics. A detailed comparison is provided in Table 1.


=== References ===
==== References ====
- (Add references if available)
* Peng, C.-I., Yang, H.-A., Kono, Y., Chung, K.-F., Huang, Y.-S., Wu, W.-H., & Liu, Y. (2013). Novelties in Begonia sect. Coelocentrum: B. longgangensis and B. ferox from limestone areas in Guangxi, China. ''Botanical Studies'', 54(1), 44.


=== Photos ===
=== Photos ===
[[File:(IMGNAME.jpg|thumb|center| (IMAGE INFO)]]
    [[File:Begonia_longgangensis.jpg|thumb|center|Begonia longgangensis]]
   
=== External Links ===
    Links to pages related to this species, if available.


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=== External Links ===
[[Category:species]]
[[Category:Species]]
[[Category:rhizomatous]]
[[Category:Begonia Type]]
[[Category:China]]
[[Category:China]]
[[Category:Coelocentrum]]

Latest revision as of 10:29, 27 September 2023

B. longgangensis
Quick Species Info
Species Begonia longgangensis
Region Southwestern Guangxi, China
Country China
Year published 2013
Date of Origin
Plant Type Rhizomatous
Section Coelocentrum
Chr 2n 2n = 30

Species Information[edit]

Classification and Distribution[edit]

Begonia longgangensis is a rhizomatous herbaceous plant species discovered in southwestern Guangxi, China.

Habitat[edit]

This species is known only from the type locality in Longzhou County, Longgang Nature Reserve, Guangxi, China. It typically grows on jagged limestone rocks in evergreen broadleaf forests.

Characteristics[edit]

Begonia longgangensis has broadly ovate to suborbicular leaves that are smaller than similar species like Begonia liuyanii. The leaf adaxial surface is sparsely reddish-scabridulous with minute processes, and the abaxial surface is tomentose on veins.

Flower Details[edit]

The inflorescences of Begonia longgangensis are dichasial cymes with pink flowers, and the peduncles are glabrous.

Etymology[edit]

Information about the etymology of the species name, if available, should be included here.

Comparison to Similar Species[edit]

References[edit]

  • Peng, C.-I., Yang, H.-A., Kono, Y., Chung, K.-F., Huang, Y.-S., Wu, W.-H., & Liu, Y. (2013). Novelties in Begonia sect. Coelocentrum: B. longgangensis and B. ferox from limestone areas in Guangxi, China. Botanical Studies, 54(1), 44.

Photos[edit]

File:Begonia longgangensis.jpg
Begonia longgangensis

External Links[edit]

   Links to pages related to this species, if available.