1. Family: Gesneriaceae Dumort.
    1. Genus: Microchirita (C.B.Clarke) Yin Z.Wang
      1. Microchirita huppatatensis C.Puglisi

        This species is accepted, and its native range is N. Thailand.

    [KBu]

    Puglisi C., Middleton DJ., Suddee S. 2016. Four new species of Microchirita (Gesneriaceae) from Thailand. Kew Bulletin 71: 2. DOI 10.1007/S12225-016-9614-0

    Type
    Thailand, Uthai Thani, Lan Sak, Huppatat Non Hunting Area, D. J. Middleton, C. Hemrat, P. Karaket, C. Puglisi & S. Suddee 5689 (holotype BKF).
    Habit
    Herb to 40 cm tall.
    Stem
    Stems fleshy, red at base and around the basal nodes, otherwise pale green, pubescent.
    Leaves
    Leaves opposite, with the exception of the single basal leaf; petioles 0.5 - 1.2 cm long, pubescent; blades pale green above, paler beneath, lanceolate or elliptic, 5 - 12.8 x 1.6 - 6.1 cm (undamaged basal leaf not seen), 2 – 3 times as long as wide, minutely tomentose above and beneath, base acute to obtuse, apex acuminate, margin entire, 5 - 9 pairs of secondary veins in the opposite leaves, at least 13 in the basal leaf, venation raised beneath in fresh material, tertiary venation barely visible and loosely reticulate.
    Inflorescences
    Inflorescence epiphyllous, 4 - 15-flowered, forming a crest where the young flowers develop flush to the midrib and then progressively curve upwards and backwards towards the stem; peduncles fused with the petiole, rarely arising from the petiole and fused together at the base; pedicels pale green, 0.2 - 2cm long, pubescent.
    Calyx
    Calyx pale green, actinomorphic, tube 0.3 - 0.5 mm long, lobes narrowly lanceolate, 8 - 9x0.7- 1.1 mm, apex acute, outside hairy throughout, with mixed glandular and eglandular hairs, inside with a sparse minute glandular indumentum.
    Corolla
    Corolla 1.5 - 2cm long, white, tube with a narrow basal portion c. 5 mm long, c. 2 mm diam., greenish white, curved downwards, then abruptly broadening into a ventral pouch, this marked by a yellow, raised and papillose line running throughout the inner surface of the tube, with a purple-brown streak on either side of it, limb externally sparsely hairy, upper lobes reflexed, with stalked glands at the base, lower lateral lobes spreading, the central lobe straight; tube length 0.9 – 1 cm dorsally,1- 1.4 cm ventrally, c. 1 cm laterally between lips, upper lobes elliptic, 3 - 3.5 x 3.5 - 4 mm, lower lateral lobes elliptic, 5 – 6 x 4 - 5 mm, lower central lobe rounded, 6 – 8 x 5 - 8 mm.
    Stamens
    Stamens arising 4 - 6 mm above the corolla tube base, filaments yellow, minutely glandular, 1 - 1.5 mm long, with a thicker base and two geniculations, anthers with a small patch of shorthairs dorsally, 1.5 – 2 x 1.2- 1.5 mm, held at a right angle, apically joined by a connective, thecae parallel, anthers yellow, connective white; all three staminodes much reduced, less than 0.5 mm long, arising 5 – 6 mm above the tube base.
    Disc
    Disk a complete ring, slightly lobed, 1 - 1.3 mm high, whitish at base and darker along the edge.
    Pistil
    Pistil c. 5 mm long; ovary fusiform, 2.5 - 3.5 mm long, glabrous in the basal ⅔ apically eglandular hairy; style 0.5 - 0.7 mm, glabrous; stigma with lobes 0.5 - 0.7 mm long, 0.4 - 0.6 mm wide, elliptic. Immature fruit pale green, c.1.5 cm long, 2- 3 mm diam., pubescent throughout its length, straight.
    Seeds
    Seeds not seen.
    Note
    Very similar to Microchirita woodii, differing in the indumentum of the anthers, the smaller flower, the more prominent yellow ventral stripe, and the acuminate leaves. The new species is named after the type locality. Microchirita huppatatensis is most similar to M. woodii, a species only known from Nan province. Both species share a corolla colour pattern of mostly white with a yellow ventral stripe surrounded by purple-brownish spots. The two species, however, differ significantly in the size of the corolla (much larger in M. woodii), the leaf ratio (higher in M. huppatatensis), leaf apex (acute, not acuminate, in M. woodii), leaf size (much larger in M. woodii), and the basal inflorescence, which can be compound in M. woodii. In living material the following additional differences in the corolla are observed, but these, unfortunately, are not preserved in dry or rehydrated
    Distribution
    Thailand: Uthai Thani. Only known from the type collection
    Ecology
    Lithophyte, on bank over limestone rocks in secondary forest.
    Conservation
    Critically Endangered [CR B1ab (iii,iv)+B2ab(iii,iv)]. This species is only known from the type collection growing in a mixed population with Microchirita personata. Therefore, the same justifications apply.

    Distribution

    Native to:

    Thailand

    Microchirita huppatatensis C.Puglisi appears in other Kew resources:

    First published in Kew Bull. 71(1)-2: 2 (2016)

    Literature

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    Sources

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Bulletin
    Kew Bulletin
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0