Section：Theopsis
Conservation Status：Critically Endangered
Remarks：This name is accepted
References：
Camellia quangcuongii L.V.Dung, S.T. Hoang & Nhan J. Jap. Bot. 91: 227 (2016) Accepted Name
» Description
Camellia quangcuongii L. V. Dung, Son & Nhan Section: Theopsis, Journal of Japanese Botany91: 226–230 (2016), Type: Vietnam. Khanh Hoa Province, Son Thai commune, Hon Giao Mountain; elevation 802m, 16/10/ 2014, Luong Dung DL141002(Holotype, DLU, SRI;Isotype, VAFS
The specimen was first discovered by Luong Van Dung, Truong Quang Cuong, and Pham Huu Nhan in 2014 in Son Thai commune, Khanh Vinh district, Khanh Hoa province. In 2016, the group of authors Luong Van Dung, Hoang Thanh Son, Tran Ninh and Pham Huu Nhan published in The journal of Japanese Botany with the scientific name Camellia quangcuongii, the Vietnamese name is Tra quang cuong, according to the author Truong Quang Cuong, one of the first discoverers of the specimen and made many contributions to research. preserving Vietnamese indigenous Camellia.
Camellia quangcuongii is
similar to C. forrestii (Diels) Cohen-Stuart and C. tsaii Hu,
but different from these species by having glabrous branchlets, cylindrical
ovary and asymmetrically ovoid capsule curved to one side.
Type: VIETNAM. Khanh Hoa Province,
Son Thai commune, Hon Giao Mountain; elevation 802 m above sea level, 16
October 2014, Luong Dung DL141002 (DLU [Dalat University, Vietnam]–holotype;
SRI [Silviculture Research Institute, Vietnamese Academy of Forest
Sciences]–isotype).
Etymology: The
specific epithet of this species honors Mr. Truong Quang Cuong, the staff of
the Bidoup-Nui Ba National Park, who has much contributed to bio-diversity
research and conservation in Bidoup-Nui Ba.
Distribution and ecology: Camellia quangcuongii is only
found from the type locality which is situated on the slope of Hon Giao
Mountain. The new species was discovered in evergreen broadleaf forest. It
grows with species of Magnoliaceae, Anacardiaceae, Rubiaceae,
Fabaceae, and Sapotaceae.
IUCN Red List category: The Area of Occupancy (AOO) for C. quangcuongii is estimated
to be less than 1 km2. Despite a further search of the area around the type
locality, only eight additional mature trees were found. The total known
population of the species is fewer than 50 individuals, and it would be
qualified as Critically Endangered (CR) under criterion D (IUCN, 2011).
Phenology: Camellia quangcuongii flowers from
October to December and fruits and set seeds from May to June in the following
year.
» Distribution
Vietnam. Khanh Hoa Province, Son Thai commune, Hon Giao Mountain
» Description
广强山茶Camellia quangcuongii
L. V. Dung, Son & Nhan 组：连蕊茶组Theopsis。《日本植物杂志》Journal
of Japanese Botany 91: 226–230 (2016)。越南庆和省Son Thai 区, Hon Giao 山; 海拔802
m, 16/10/ 2014, Luong Dung DL141002 (主模式, DLU, SRI;等模式, VAFS)
该标本由 Luong Van Dung、Truong Quang Cuong 和 Pham Huu Nhan 于 2014 年在庆和省庆荣县 Son Thai 乡首次发现。2016 年，Luong Van Dung、Hoang Thanh Son、Tran Ninh 和 Pham Huu Nhan 在《日本植物学杂志》（The journal of Japanese Botany）上发表文章，学名为 Camellia quangcuongii，越南语名称为 Tra quang cuong，据作者张广强（Truong Quang Cuong）称，他是该标本的最早发现者之一，为研究保护越南本土山茶做出了许多贡献。
广强山茶 C.quangcuongii与C. forrestii (Diels) Cohen-Stuart 和C. tsaii Hu相似，但与这些种不同的是，它的小枝无毛，子房圆筒形，蒴果呈不对称卵球形，向一侧弯曲。
模式： 越南。庆和省，Son Thai乡，Hon Giao山；海拔802米，2014年10月16日，Luong Dung DL141002（DLU [越南大叻大学]-holotype；SRI [越南森林科学院造林研究所]-isotype）。
词源： 该物种的种加词是为了纪念 Bidoup-Nui Ba 国家公园的工作人员 Truong Quang Cuong 先生，他为 Bidoup-Nui Ba 的生物多样性研究和保护做出了巨大贡献。
分布与生态 Camellia quangcuongii仅产于位于Hon Giao山坡上的模式产地。新种发现于常绿阔叶林中。它与木兰科、无患子科、茜草科、豆科和无患子科的物种一起生长。
世界自然保护联盟红色名录类别： 据估计，C. quangcuongii 的栖息地面积不到 1 平方公里。尽管对模式产地周围地区进行了进一步搜索，但只发现了另外 8 棵成熟的树木。该物种的已知种群总数少于 50 个，根据标准 D（世界自然保护联盟，2011 年），该物种将被列为极度濒危物种（CR）。
物候学： 山茶花的花期为 10 月至 12 月，翌年 5 月至 6 月结果并结籽。
» Distribution
越南庆和省Son Thai 区
Species in the Same Section: 细叶金花茶 Camellia parvifolia Cohen-Stuart、黄杨叶连蕊茶 Camellia buxifolia Hung T.Chang、贵州连蕊茶 Camellia costei H.Lév.、厚柄连蕊茶 Camellia crassipes Sealy、尖连蕊茶 Camellia cuspidata (Kochs) Hort. ex Bean、浙江尖连蕊茶 Camellia cuspidata (Kochs) Bean var. chekiangensis Sealy、大花尖连蕊茶 Camellia cuspidata var. grandiflora Sealy、长管连蕊茶 Camellia elongata (Rehder & E.H.Wilson) Rehder、柃叶连蕊茶 Camellia euryoides Lindl.、蒙自连蕊茶 Camellia forrestii (Diels) Cohen-Stuart、毛花连蕊茶 Camellia fraterna Hance、岳麓连蕊茶 Camellia handelii Sealy、九嶷山连蕊茶 Camellia jiuyishanica Hung T.Chang & L.L.Qi、披针萼连蕊茶 Camellia lancicalyx Hung T.Chang、披针叶连蕊茶 Camellia lancilimba Hung T.Chang、荔波连蕊茶 Camellia lipoensis Hung T.Chang & Z.R.Xu 、长果连蕊茶 Camellia longicarpa Hung T.Chang & B.M.Barthol.、琉球连蕊茶 Camellia lutchuensis T.Itō、大萼连蕊茶 Camellia macrosepala Hung T.Chang、微花连蕊茶 Camellia minutiflora Hung T.Chang、能高山茶 Camellia nokoensis Hayata、细叶连蕊茶 Camellia parvilimba Merr. & F.P.Metcalf、小卵叶连蕊茶 Camellia parviovata Hung T.Chang & S.S.Wang、超长尖连蕊茶 Camellia percuspidata Hung T.Chang、玫瑰连蕊茶 Camellia rosiflora Hook、肖长尖连蕊茶 Camellia subacutissima Hung T.Chang、川滇连蕊茶 Camellia synaptica Sealy、阿里山连蕊茶 Camellia transarisanensis (Hayata) Cohen-Stuart、南投秃连蕊茶 Camellia transnokoensis Hayata、三花连蕊茶 Camellia triantha Hung T.Chang、毛枝连蕊茶 Camellia trichoclada (Rehder) S.S.Chien、云南连蕊茶 Camellia tsaii Hu、细萼连蕊茶 Camellia tsofui S.S.Chien、比杜普山茶 Camellia bidoupensis Truong, Luong & Tran、长凸连蕊茶 Camellia longicuspis S.Ye Liang 、长萼连蕊茶 Camellia longicalyx Hung T.Chang、尖萼蒙自连蕊茶 Camellia forrestii (Diels) Cohen-Stuart var. acutisepala (H.T.Tsai & K.M.Feng) Hung T.Chang、细尖连蕊茶 Camellia parvicuspidata Hung T.Chang、长尖连蕊茶 Camellia acutissima Hung T.Chang、美齿连蕊茶 Camellia callidonta Hung T.Chang、川鄂连蕊茶 Camellia rosthorniana Hand.-Mazz.、短柄细叶连蕊茶 Camellia parvilimba var. brevipes Hung T.Chang、小石果连蕊茶 Camellia parvilapidea Hung T.Chang、五室连蕊茶 Camellia stuartiana Sealy、秃梗连蕊茶 Camellia dubia Sealy、膜叶连蕊茶 Camellia membranacea Hung T.Chang、钟萼连蕊茶 Camellia campanisepala Hung T. Chang、金平连蕊茶 Camellia tsingpienensis、毛萼金屏茶 Camellia tsingpienensis var. pubisepala Hung T.Chang、绿萼连蕊茶 Camellia viridicalyx、小长尾连蕊茶 Camellia parvicaudata Hung T.Chang、半秃连蕊茶 Camellia subglabra Chang、毛丝连蕊茶 Camellia trichandra Hung T.Chang
