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Published In: Species Plantarum 1: 131. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Contributor Text: YASIN J. NASIR
General/Distribution: Species about 50 in Europe; Africa, New Zealand, Australia. Represented by 7 species in Pakistan.
Comment/Acknowledgements: The present treatment of the genus, especially the perennial species, is provisional. More collecting, especially fruiting material along with field notes on flower colour, ecology etc would be very helpful.


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Annual or perennial herbs with hairy parts and alternate leaves. Inflorescence initially scorpioid, later racemose. Flowers ebracteate, blue or white. Calyx barely enlarged in fruit. Corolla hypocrateriform, 5-lobed, with tube smaller than the calyx; lobes spreading. Throat scales present. Stamens 5, included. Nutlets 4, usually ovoid and compressed, smooth, shiny.

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1 Calyx covered with appressed straight hairs only (2)
+ Calyx covered, at least in lower half, with spreading ± curved to uncinate hairs (3)
2 (1) Style shorter than the fruiting calyx 1 Myosotis caespitosa
+ Style as long as the fruiting calyx 2 Myosotis palustris
3 (1) Annuals. Pedicels shorter than the fruiting calyx (4)
+ Perennial or biennials. Pedicels equal to or longer than fruiting calyx (5)
4 (3) Calyx spreading to deflexed; lower half of calyx mostly with appressed hairs with few uncinate ones 4 Myosotis refracta subsp. chitralica
+ Calyx erect, ± appressed to the flowering axis; lower half of calyx mostly with curved to uncinate hairs 3 Myosotis stricta
5 (3) Nutlets ± acute at apex, uniformly margined (6)
+ Nutlets ± obtuse at apex, margined only on upper half 5 Myosotis alpestris subsp. asiatica
6 (5) Stem (-s) not flaccid; much branched. Calyx lobes ± constricted in fruit. Corolla limb 2.5-4 mm broad 7 Myosotis arvensis
+ Stern ± flaccid, generally less branched. Calyx open in fruit. Corolla limb 5-7 mm broad 6 Myosotis sylvatica
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