Zingiber oligophyllum, K. Schum. A. Inflorescence, 1904
publication ID |
https://doi.org/ 10.11646/phytotaxa.261.2.1 |
persistent identifier |
https://treatment.plazi.org/id/BB146037-1F0E-2179-6FB7-FDDA6CA73A58 |
treatment provided by |
Felipe |
scientific name |
Zingiber oligophyllum |
status |
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Key to the four species of the informal “ Z. oligophyllum View in CoL complex”
1. Bracts densely imbricate, forming a compacted spike, rachis not visible at flowering....................................................................2.
- Bracts loosely arranged, forming a rather open spike, rachis often visible at flowering (or at least easily accessible by simply spreading the bracts)..........................................................................................................................................................................3.
2. Peduncles 12–25(–45) cm long, erect; bracts deeply convex with inflated base (forming prominently bullate spikes) and acuminate, wide-spreading apices; rhizomes tough, fibrous, well-elongated, creeping; distribution: China (Yunnan Province) ........................ ..................................................................................................................................................................................... Z. ventricosum View in CoL
- Peduncles 1–5(–12) cm long, procumbent; bracts with no basal inflation (forming narrowly ovate spikes with smooth on surface), obtuse to acute or attenuate apices (not spreading); rhizomes fleshy, compacted, and densely branched; distribution: China (Yunnan Province), northern Laos, Thailand.............................................................................................................. Z. xishuangbannaense View in CoL
3. Lateral staminodes narrowly oblong or spathulate, connate to labellum in the basal ca. 1/3, labella and lateral staminodes pale yellow to yellow; corolla lobes pale yellow, filament present; rhizomes compacted; distribution: mainland China (Guangdong, Fujian), Hong Kong and Taiwan) ............................................................................................................................. Z. oligophyllum View in CoL
- Lateral staminodes asymmetrically obovate, connate to labellum in the basal 3/4, labella and lateral staminodes cream-yellow, often mottled with pale pink or pale purple; corolla lobes heavily tinged with red, filament absent; rhizomes elongated, almost creeping; distribution: southern Laos, southern Vietnam.................................................................................................. Z. thorelii View in CoL
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