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Fig. 1. – Arisaema brinchangense Y.W in Arisaema brinchangense Y.W. Low, Scherberich & Gusman (Araceae), a new threatened species endemic to the Cameron Highlands (Peninsular Malaysia)

Fig. 1. – Arisaema brinchangense Y.W. Low, Scherberich & Gusman. A. Habit; B. Details of the lower leaf blade surface; C. Rhizome showing numerous offsets and fleshy white roots, inflorescence artificially removed; D. Front view of an inflorescence showing spathe-limb with distinctive white trident marking (with three pointed tips) and spadix-appendix slight bent forward; E. Spathe-tube of a male inflorescence artificially removed to show the male spadix fertile zone,

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Fig. 2 in Arisaema brinchangense Y.W. Low, Scherberich & Gusman (Araceae), a new threatened species endemic to the Cameron Highlands (Peninsular Malaysia)

Fig. 2. − Inflorescences of Arisaema brinchangense Y.W. Low, Scherberich & Gusman (A-B) and A. anomalum Hemsl. (C-D). A. Side view of the inflorescence showing straight and hardly recurved spathe-tube mouth margin; B. Dorsal view of the inflorescence showing distinct white to pale cream coloured trident marking (with three pointed tips) on the spathe-limb; C. Side view of an inflorescence showing strongly recurved (auriculate) spathe-tube mouth margin; D. Dorsal view of the inflorescence showing white to pale cream coloured narrow parallel stripes along the spathe-limb. [Photos: D. Scherberich]

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Fig. 3 in Arisaema brinchangense Y.W. Low, Scherberich & Gusman (Araceae), a new threatened species endemic to the Cameron Highlands (Peninsular Malaysia)

Fig. 3. – Distribution of Arisaema brinchangense Y.W. Low, Scherberich & Gusman (black circle) in Peninsular Malaysia.

Fig. 1 in Two new threatened species of Benstonea Callm. & Buerki (Pandanaceae) from Sabah (Borneo, Malaysia)

Fig. 1. – Distribution of Benstonea fortuita Callm. & Buerki (white star) and B. serpentinica Callm. & Buerki (white circle) in Borneo. Abbreviations: 1. Crocker Range National Park; 2. Kinabalu Park.

Fig. 2 in Two new threatened species of Benstonea Callm. & Buerki (Pandanaceae) from Sabah (Borneo, Malaysia)

Fig. 2. – Benstonea fortuita Callm. & Buerki. A. Habit; B. Infructescence; C. Close up of styles and stigmas. [Callmander et al. 1197] [Photos: M. Callmander]

Fig. 3 in Two new threatened species of Benstonea Callm. & Buerki (Pandanaceae) from Sabah (Borneo, Malaysia)

Fig. 3. – Benstonea serpentinica Callm. & Buerki. A. Habit; B-C. Infructescences; D. Syncarp; E. Close up of styles and stigmas. [A-B: Buerki et al. 342; C-D: Callmander et al. 1187] [Photos: M. Callmander]

Fig. 1. – Eugenia plurinervia N in Novitates neocaledonicae V: Eugenia plurinervia N. Snow, Munzinger & Callm. (Myrtaceae), a new threatened species with distinct leaves

Fig. 1. – Eugenia plurinervia N. Snow, Munzinger & Callm. A. Main stem with peeling grayish bark; B. General habit; C. Flower; D. Immature fruit; E. Radiating secondary nerves of the densely punctate leaves. [Photos: R.Scopetra]

Fig. 2 in Novitates neocaledonicae V: Eugenia plurinervia N. Snow, Munzinger & Callm. (Myrtaceae), a new threatened species with distinct leaves

Fig. 2. – Distribution map of subpopulations of Eugenia plurinervia N. Snow, Munzinger & Callm. (yellow dots) in an area adjacent to mining concession and RT1 road (red) in north-western New Caledonia. Areas in pink and gray indicate ultramafic substrates on Grande Terre. [© Image and mining cadastre from D.I.T.T.T./S.G.T. Governement of New Caledonia]

Figure 7 in Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Figure 7 Pseudohydrosme ebo (A–D from van der Burgt 2377, K, YA; E from Morgan 25, K,YA). (A) Primary lateral division (one of three divisions) of leaf-blade, with petiole folded, behind; (B) seedling (probably in first year); (C) seedling plant (probably in third or later year); (D) seedling leaf-blade (pre-mature); ((E) obique view (B) and (F) from above); trilobed stigma. Drawn by Andrew Brown. Full-size DOI: 10.7717/peerj.10689/fig-7

Figure 3 in Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Figure 3 Global distribution of the species of the African genus Pseudohydrosme. Red dot = P. buettneri; black dots= P.gabunensis (location not available for Congo specimen); blue dot = P. ebo. Full-size DOI: 10.7717/peerj.10689/fig-3

Figure 6 in Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Figure 6 Pseudohydrosme ebo (van der Burgt 1888, K, YA). Drawing of flowering plant. ((A) ventral side view and (B) oblique side view) habit, rhizome and inflorescences; (C) inflorescence, longitudinal section, showing spadix from base to apex with sparse female flowers, partially naked axis of female zone, separated by naked axis from the densely flowered, male zone; (D) group of three stamens, ventral side view; (E) stamen; (F) stamen, transverse section; (G) female flower, entire, side view; (H) female flower, longitudinal section; (I) ovary, transverse section. Drawn by Andrew Brown. Full-size DOI: 10.7717/peerj.10689/fig-6

Figure 2 in Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Figure 2 Pseudohydrosme ebo (van der Burgt 2377, K, YA). Photo of plant in leaf, in habitat, Ebo forest, December, 2019. Photo by Xander van der Burgt. Full-size DOI: 10.7717/peerj.10689/fig-2

Figure 5 in Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Figure 5 Pseudohydrosme gabunensis. Photo of flowering, leafless plant cultivated at University of Vienna Botanic Garden (courtesy of David Prehsler). Full-size DOI: 10.7717/peerj.10689/fig-5

Figure 1 in Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Figure 1 Pseudohydrosme ebo (van der Burgt 1888, K, YA). Photo of flowering, leafless plant at Ebo forest, October 2015. Photo by Xander van der Burgt. Full-size DOI: 10.7717/peerj.10689/fig-1

Figure 4 in Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Figure 4 Pseudohydrosme buettneri (Buettner 519, B). Drawing of flowering plant. (A) Habit, rhizome and inflorescences; (B) spadix after removal of spathe showing from base to apex, female, male and staminodal flowers; (C and D) paired stamens, side view; (E) paired stamens flowers, transverse section; (F and G) staminodes, sterile male flower; (H) female flower, entire, side view; (J) female flower, longitudinal section. Reproduced from protologue, (Engler, 1892: taf. XVII). Drawn by Josef Pohl. Full-size DOI: 10.7717/peerj.10689/fig-4

FIG. 5 in Novelties in Erythroxylum P.Browne (Erythroxylaceae) from the Comoros Archipelago: two new, range-restricted and threatened species, and notes on the Mount Choungi biogeographical singularity

FIG. 5. — Distribution of Erythroxylum choungiense E.Bidault, Traclet & M.Pignal, sp. nov. (♦) and E. labatii E.Bidault & M.Pignal, sp. nov. (●) in the Comoros archipelago.

FIG. 4. — Erythroxylum labatii E.Bidault & M in Novelties in Erythroxylum P.Browne (Erythroxylaceae) from the Comoros Archipelago: two new, range-restricted and threatened species, and notes on the Mount Choungi biogeographical singularity

FIG. 4. — Erythroxylum labatii E.Bidault & M.Pignal, sp. nov.: A, stem and immature fruits; B, inflorescence with flower buds and stem portion with cataphylls; C, long-styled flower; D, mature fruit; E, short-styled flower; A, D, photos by J.-N. Labat, B, E, photos by E. Bidault, C, photo by G. Viscardi.

FIG. 1. — Erythroxylum choungiense E in Novelties in Erythroxylum P.Browne (Erythroxylaceae) from the Comoros Archipelago: two new, range-restricted and threatened species, and notes on the Mount Choungi biogeographical singularity

FIG. 1. — Erythroxylum choungiense E.Bidault, Traclet & M.Pignal, sp. nov.: A, habit (dry); B, habit (fresh); C, detail of leaf venation; D, long-styled flower; E, shortstyled flower; F, short-style flower with corolla fallen; G, mature fruit; H, seed; A, C, D-F, Guiot 03 (MAO), B, G, H, no voucher. Drawings by Ludivine Longou. Scale bars: A, B, 2 cm; C, 3 mm; D, E, 1 mm; F, 2 mm; G, H, 1 mm.

FIG. 3. — Erythroxylum labatii E.Bidault & M in Novelties in Erythroxylum P.Browne (Erythroxylaceae) from the Comoros Archipelago: two new, range-restricted and threatened species, and notes on the Mount Choungi biogeographical singularity

FIG. 3. — Erythroxylum labatii E.Bidault & M.Pignal, sp. nov.: A, detail of stem; B, long-styled flower; C, short-styled flower with corolla fallen; D, short-styled flower; E, immature fruit; F, mature fruit; G, habit, dry; H, detail of inflorescence with flower buds; I, detail of cataphyll, abaxial side; A, C, G-I, Labat et al. 3212 (P); B, D, Bidault et al. 63 (P); E, F, Labat et al. 3787 (P). Drawings by Anne-Hélène Paradis. Scale bars: A, B, 2 mm; C, 1 mm; D, 2 mm; E, F, 3 mm; G, 2 cm; H, 2 mm; I, 1 mm.