Psychotria silhetensis

Psychotria silhetensis Hook.f., Fl. Brit. India 3: 174 1880. (syn: Uragoga silhetensis (Hook.f.) Kuntze);
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Arunachal Pradesh to Bangladesh: Assam, Bangladesh, East Himalaya as per POWO;
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Shrubs, up to 3 m tall; branchlets stout; stem slender, pubescent. Leaves simple, opposite decussate; stipules ca. 1-2.5 x 0.5-1 cm, ovate-oblong, villous beneath; petioles ca. 1 cm long, stout, puberulose; lamina ca. 13-35 x 4-16 cm, elliptic-oblong, ovate or obovate, cuneate or attenuate at base, acute or acuminate at apex, entire, coriaceous, glabrous above, puberulose or glabrous beneath; secondary nerves 14-22 pairs. Inflorescences in terminal or axillary, pedicellate corymbose cymes; calyx cupular or obconic, ca. 0.15-0.2 x 0.2-0.25 cm, puberulose, apically 5 toothed; corolla ca. 0.15-0.3 cm long, greenish brown or white, throat velutinous within; lobes 5, ovate-lanceolate or ovate-elliptic, slightly inflexed, glabrous or warty above; stamens 5, inserted. Fruit ca. 1-1.5 cm in diam., ovoid, black, stalked, warty or glabrous above.
Flowering & Fruiting: September-December
(Attributions- French Institute of Pondicherryas per India Biodiversity Portal)
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MS,Oct, 2021/33 Rubiceae ? for id: 1 high res. image.
Location : Ailawng
Date : 20-05-2019
Habit : Small shrub ?
Habitat : Wild

Psychotria,

Any keys, …?
Leaves appear closer to your images at Psychotria monticola Kurz

As the keys are mainly based on the shape of the pyrene (with seeds inside).
Let us keep it as Psychotria monticola only until we have more details and pyrene.
I checked all the species listed from your book.
This appears close to Psychotria silhetensis Hook.f. as per POWO specimens- one and two.

Psychotria monticola ?

No

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MS,Nov.,2021/07 Lasianthus sp.? for id.: 4 images.
Location : Dampui-ngaw,
Date : 02-05-2016
Habit : Undershrub
Habitat : Wild

What are the sp. listed there?

Neurocalyx sp.?…..

Looks different from Neurocalyx calycinus

It is not Lasianthus.
I checked all the species listed from your book at MS,Oct, 2021/33 Rubiceae ? for id
This appears close to Psychotria silhetensis Hook.f. as per POWO specimens- one and two.

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MS,Jan.,2023/28 Psychotria sp. (silhetensis ?) for id.: 1 image.
Location : Reiek tlâng, Mizoram

Altitude : ca.1,320 m
Date : 19-01-2023
Habit : Undershrub
Habitat : Wild

I checked all the species listed in your book as per details at MS,Oct, 2021/33 Rubiceae ? for id
Yes, it appears close to Psychotria silhetensis as per GBIF specimens (one, two, three and four).

 

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References:
POWO  Catalogue of Life  The Plant List Ver.1.1  WCSP  IPNI  GBIF (High resolution specimens) India Biodiversity Portal  IBIS Flora (Flora of British India)