Got a description from IBP also. Including that:
Flora of China <http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=220008890> *Mussaenda roxburghii* Hook.f.: Flora of Bhutan <https://biodiversity.bt/species/show/6298> *Much branched shrub 1-4.5m.* stems glabrous or pilose with spreading hairs *leaves petiolate usually elliptic, rarely ovate or oblong,* *5-25 x 4-9cm,* acuminate at both ends, *subglabrous or thinly pilose above, thinly to densely pilose below, veins adpressed pilose on both surface; *petioles 2-15mm; *stipules broadly triangular, 6-10mm.* *Inflorescence a dense terminal head, usually 3 branched from base, but differentiated, many flowered. Calyx lobes filiform, tapering from base, 6-9mm x 1mm, densely covered in long silky hairs.* *Corolla tube 2.4-2.8cm, densely covered in long silky hairs. lobes narrowly ovate, 4-8 x 2-2.5mm, terminating in a long fine hairpoint. Berry globose, 6-10mm, glabrous calyx persistent until fruit is ripe.* >From IBP: *Shrubs, up to 8 m tall;* branchlets striate, angular, greenish, densely pubescent. Leaves simple, opposite decussate; *stipules ca. 0.5-2 x 0.4-0.8 cm, triangular, acuminate; petioles ca. 0.5-1.5 cm long, densely hairy;* *lamina ca. 5-20 x 3-9 cm, oblong-lanceolate, acute to acuminate at base, acuminate at apex,* entire, pubescent underneath; secondary nerves 6-12 pairs. Flowers white, ca. 0.4-0.6 cm across *in terminal subcapitate cymes; peduncles pubescent; bracts ovate, ca. 0.8 x 0.3 cm, acuminate; clayx lobes filiform, ca. 0.6-1 x 0.1-0.2 cm;* petaloid sepals oblong-lanceolate, ca. 4-10 x 2.5 cm with 1-4 cm long stalk; *corolla-lobes ovate, ca. 0.2-0.1 cm, acuminate. Berries subglobose, ca. 1.8 cm in diam., sparsely appressed pubescent. *Seeds ellipsoid or globose, reticulate. *Mussaenda frondosa* Linnaeus: *Climbing shrubs; *branches terete to compressed, moderately to densely pale red sericeous to hirsute becoming glabrescent, red-brown or brown, rather densely lenticellate. Leaves opposite; petiole 4-10 mm, densely sericeous; blade drying thinly papery or leathery, adaxially dark green to brownish green, abaxially pale green to yellowed, *broadly elliptic, elliptic-oblong, ovate, or oblanceolate, 8-15 × 3-8* cm, *both surfaces sparsely strigillose on lamina and strigose to sericeous on principal veins, *base acute, obtuse, or rounded, apex acute to caudate-acuminate; secondary veins 7-10 pairs, tertiary venation visible and reticulate; *stipules persistent, triangular, 5-10 mm, densely strigose to pilose, deeply 2-lobed, lobes lanceolate to narrowly triangular, acute to acuminate.* *Inflorescences congested-cymose* *becoming lax with lateral axes elongating markedly, 4-8 × 8-20 cm with lateral axes to 8 cm, *sparsely to moderately pubescent with 2 types of pubescence, mixed strigillose to appressed puberulent and hirsute to villous, *pedunculate or sessile *and 3-partite; peduncles 1-3 cm; *bracts triangular or elliptic, 4-10 mm, usually 2- to multifid, acute to acuminate; *pedicels 1-6 mm. Flowers pedicellate, biology not noted. Calyx with hypanthium portion ellipsoid, 3-4 mm, strigose to sericeous; *lobes narrowly triangular to narrowly ligulate, 7-12 mm, hirsute, acute to acuminate, *with 1 lobe of 1-4 flowers per inflorescence sometimes expanded into calycophyll, blade elliptic-oblong to ovate, 6-8 × 2.5-5 cm, both surfaces glabrescent on lamina and strigillose on principal veins, base acute to cuneate, stipe 10-30 mm, apex acute or acuminate. *Corolla salverform, outside hirsute; tube 22-25 mm; lobes ovate, 6-7 mm, acuminate. Berry ovoid or ellipsoid, ca. 10 × 7 mm, strigose to glabrescent, *calyx limb deciduous. Fl. Apr-May. On Sat, 13 Aug 2022 at 12:08, J.M. Garg <[email protected]> wrote: > I think the main difference appears to be in Calyx lobes: > For *Mussaenda frondosa*, it is 'Calyx with hypanthium portion ellipsoid, > 3-4 mm, strigose to sericeous; lobes narrowly triangular to narrowly > ligulate, *7-12 mm,* hirsute, acute to acuminate' as per Flora of China > <http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=220008890>. > For M*ussaenda roxburghii*, it is 'Calyx lobes filiform, tapering from > base, *6-9mm x 1mm, *densely covered in long silky hairs' as per Flora of > Bhutan <https://biodiversity.bt/species/show/6298>. > > Let us see the detailed description to arrive at the right id: > > > Flora of Bhutan <https://biodiversity.bt/species/show/6298> > > Flora of China > <http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=220008890> > > > *Mussaenda roxburghii* Hook.f.: > > *Much branched shrub 1-4.5m.* stems glabrous or pilose with spreading > hairs *leaves petiolate usually elliptic, rarely ovate or oblong,* *5-25 > x 4-9cm,* acuminate at both ends, *subglabrous or thinly pilose above, > thinly to densely pilose below, veins adpressed pilose on both surface; > *petioles > 2-15mm; *stipules broadly triangular, 6-10mm.* *Inflorescence a dense > terminal head, usually 3 branched from base, but differentiated, many > flowered. Calyx lobes filiform, tapering from base, 6-9mm x 1mm, densely > covered in long silky hairs.* *Corolla tube 2.4-2.8cm, densely covered in > long silky hairs. lobes narrowly ovate, 4-8 x 2-2.5mm, terminating in a > long fine hairpoint. Berry globose, 6-10mm, glabrous calyx persistent until > fruit is ripe.* > > *Mussaenda frondosa* Linnaeus: > > *Climbing shrubs; *branches terete to compressed, moderately to densely > pale red sericeous to hirsute becoming glabrescent, red-brown or brown, > rather densely lenticellate. Leaves opposite; petiole 4-10 mm, densely > sericeous; blade drying thinly papery or leathery, adaxially dark green to > brownish green, abaxially pale green to yellowed, *broadly elliptic, > elliptic-oblong, ovate, or oblanceolate, 8-15 × 3-8* cm, *both surfaces > sparsely strigillose on lamina and strigose to sericeous on principal > veins, *base acute, obtuse, or rounded, apex acute to caudate-acuminate; > secondary veins 7-10 pairs, tertiary venation visible and reticulate; > *stipules > persistent, triangular, 5-10 mm, densely strigose to pilose, deeply > 2-lobed, lobes lanceolate to narrowly triangular, acute to acuminate.* > *Inflorescences > congested-cymose* *becoming lax with lateral axes elongating markedly, > 4-8 × 8-20 cm with lateral axes to 8 cm, *sparsely to moderately > pubescent with 2 types of pubescence, mixed strigillose to appressed > puberulent and hirsute to villous, *pedunculate or sessile *and > 3-partite; peduncles 1-3 cm; *bracts triangular or elliptic, 4-10 mm, > usually 2- to multifid, acute to acuminate; *pedicels 1-6 mm. Flowers > pedicellate, biology not noted. Calyx with hypanthium portion ellipsoid, > 3-4 mm, strigose to sericeous; *lobes narrowly triangular to narrowly > ligulate, 7-12 mm, hirsute, acute to acuminate, *with 1 lobe of 1-4 > flowers per inflorescence sometimes expanded into calycophyll, blade > elliptic-oblong to ovate, 6-8 × 2.5-5 cm, both surfaces glabrescent on > lamina and strigillose on principal veins, base acute to cuneate, stipe > 10-30 mm, apex acute or acuminate. *Corolla salverform, outside hirsute; > tube 22-25 mm; lobes ovate, 6-7 mm, acuminate. Berry ovoid or ellipsoid, > ca. 10 × 7 mm, strigose to glabrescent, *calyx limb deciduous. Fl. > Apr-May. > > > > > After going through the descriptions, I feel it may be *Mussaenda > roxburghii* Hook.f. only. > > The following posts may also be of *Mussaenda roxburghii* Hook.f..: > Mussaenda sp. for ID > <https://groups.google.com/forum/#!topic/indiantreepix/PyVRNEpVc3o> > Mussaenda frondosa? > <https://groups.google.com/g/indiantreepix/c/3wHuOtgb-wA> > Mussaenda glabrata (Hook.f.) Hutch. ex Gamble from Assam KD 02 Jul’ 2017 > <https://groups.google.com/forum/#!topic/indiantreepix/RGEdgz4IpYY> > MS July, 2017/06 Mussaenda sp. for Id > <https://groups.google.com/forum/#!topic/indiantreepix/cz3kw_lgEqk> > MS, June,2021/20 Mussaenda sp. for id. > <https://groups.google.com/g/indiantreepix/c/Djx0yAK3a2Y> > > > > On Sat, 13 Aug 2022 at 09:51, Tabish <[email protected]> wrote: > >> To my eye, the sepals of Mussaenda frondosa >> <https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:756632-1> >> look broader in comparison to my images, and also more hairiness of the >> plant. Also the buds of my plant look different from those of M. frondosa. >> The buds of my plant appear to agree with the M. roxburghii images on Flora >> of Bhutan site >> https://biodiversity.bt/species/show/6298 >> https://biodiversity.bt/group/royal_manas_national_park/ >> observation/show/5360 >> Tabish >> >> >> On Friday, August 12, 2022 at 10:40:59 PM UTC+5:30 Tabish wrote: >> >>> Found this plant growing by riverside in Pasighat, Arunachal Pradesh in >>> May end. >>> I think this is Mussaenda roxburghii. Looking for confirmation or >>> otherwise id suggestions. >>> Best wishes >>> Tabish >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "eFloraofIndia" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/indiantreepix/e2712789-7494-4034-9cdb-c942aacaf0f4n%40googlegroups.com >> <https://groups.google.com/d/msgid/indiantreepix/e2712789-7494-4034-9cdb-c942aacaf0f4n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > > > -- > With regards, > J.M.Garg > -- With regards, J.M.Garg -- You received this message because you are subscribed to the Google Groups "eFloraofIndia" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/indiantreepix/CA%2BiuSFAbAsWBnALB7db%3DrhQ4dzofC8UczcN8F_ZB%3D%2B6jBvx9cg%40mail.gmail.com.
