Hedyotis cyanantha

Hedyotis cyanantha Kurz, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 45(2): 136 1876 (syn: Hedyotis caerulea Wight & Arn. [Illegitimate]; Oldenlandia caerulea Gamble [Illegitimate]; Oldenlandia pygmaea Kuntze);

India to Malesia as per WCSP;

India; Malaya; Sri Lanka; Sulawesi as per Catalogue of Life;


Herbs annual, erect, branching below; root-stock stout, branching; stem 6-18 cm long, stiff, terete, setaceous. Leaves sessile, opposite or verticillate, 1-1.5 x 0.2 cm, linear, aristate at apex, coriaceous, punctate, rigid, revolute at margin, setaceous above and along midrib below; stipules 2-2.2 x 1-2 mm, white, membranous, with 3-4 bristles, 3-3.5 mm long. Inflorescence axillary or terminal capitate cymes with 3-4 flowers. Flowers sessile or shortly pedicelled, 4-5 mm long; pedicel up to 1 mm long, setaceous. Hypanthium globose, 0.7-1 mm long; calyx limb 0.5-1 mm long, setaceous; lobes 4, 1-1.5 x 0.1-0.12 mm, triangular-lanceolate, aristate at apex. Corolla 3-4 mm long, blue; tube 1-1.5 mm long, glabrous inside; lobes 4, 2.5-3 x 1 mm, lanceolate to linear-lanceolate, 3 nerved, minute puberulous inside, incurved at apex. Stamens 4, exserted, longer than corolla lobes; filaments 3-3.5 mm long, attached near sinus of corolla lobes, ciliate at base; anthers oblong, 0.5-0.8 mm long. Ovary 0.5-0.8 mm long, ovules many; style slender, 4-5 mm long; stigma bifid, 0.5-1 mm long, linear, feathery. Capsules globose or ovoid, 2-4 x 1.5-2 mm, notched at apex, subcoriaceous, ribbed, punctate setaceous, with rigid calyx teeth, loculicidal on crown only. Seeds 40-70, 0.1-0.15 mm, triangular, narrowly winged, reticulate, very often orbicular.
Flowering and fruiting: October-June
Lateritic slopes and grasslands
Peninsular India and Sri Lanka
(Attributions- Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi from India Biodiversity Portal)


 
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Hedyotis cyanantha Kurz, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 45(2): 136 1876.
Syn: Hedyotis caerulea Wight & Arn. (Nom. Illeg.); Oldenlandia caerulea (Wight & Arn.) Gamble (Nom. Illeg.)
Delicate herb with slender branches, much branches mainly from base; leaves opposite or fascicled, 1-nerved, linear-subulate, tip pointed, 10-40 mm long, margin revolute; flowers pale blue one or more between two reduced leaves; calyx teeth triangular, distinctly pointed.
Photographed along wet slope below Mullaiangiri peak at alt of around 1700 m in Karnataka.

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130-TSP-ID-16DEC2016-1: Herb @ Mullaianagiri for ID. : 10 posts by 4 authors. Attachments (6)

Kindly examine and identify this plant.. 

Habit:Herb 

Habitat:Wild,on wet moss-clad rocks amidst grass in montane forest 

Sighting:Mullaianagiri,Chikmagalur,Karnataka about 1700 msl 

Date:15-09-2015 and 09-10-2016 


Very nice images again, not sure but can be Swertia sp.

Swertia species with images in eFloraofindia (with details/ keys from published papers/ regional floras/ FRLHT/ FOI/ Biotik/ efloras/ books etc., where ever available on net) 

Could not find any match with comparative images in efi at Swertia
May be a new addition to efi ?

Its a member of Rubiaceae. Some genus related to Hedyotis, Oldenalandia

The images show some characteristic features of Rubiaceae including the bifid stigma and persistent calyx in fruit. I remember ... posting a similar plant 2 years back from the same area, around the same time. A late blooming herb towards the end of monsoon in the grasslands.
Swertia would have nectaries/glands present at the base of the inner face of petals which are clearly lacking here.

I think close to Hedyotis cyanantha Kurz as per images herein.


 
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Small herb for ID- 07022014- PKA- Feb- 15 : Attachments (6). 6 posts by 5 authors. 
This is a very small herb found growing on a rock at higher altitudes (approx. 5500ft) in Mullayanagiri region (Karnataka)
Flowers were small in size, approx. 3mm across.
Date/Time: 26-01-2014 / 15:10Hrs
Habitat:Wild
Plant habit: Herb, leaves were not seen.
Perhaps a member of Gentianaceae
good finding. more details about the leaves and so....??...
I think Hedyotis cyanantha ..

It seems to be Neanotis foetida (Dalzell) W.H.Lewis according to flora Hassan dt.
I think more closer to images at Hedyotis cyanantha from near Mullayaiamgiri in Karnataka-GSOCT02/13 by ... rather than Neanotis subtilis (syn: Neanotis foetida)
  
4 posts by 2 authors. Attachments (6).  
This is a very small herb found growing on a rock at higher altitudes (approx. 5500ft) in Mullayanagiri region (Karnataka)
Flowers were small in size,  approx. 3mm across.
Date/Time: 26-01-2014 / 15:10Hrs
Habitat: Wild
Plant habit: Herb, leaves were not seen. 
Is it Oldenlandia stocksii



References:

A Revised Handbook to the Flora of Ceylon -, Volume 12 By M. D. Dassanayake (1998- Details with keys)
Flora of Eastern Ghats: Hill Ranges of South East India, Volume 3 By T. Pullaiah, K. Sri Ramamurthy (Description & Keys)
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