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Published In: Repertorium Specierum Novarum Regni Vegetabilis 14(394–399): 150. 1915. (Repert. Spec. Nov. Regni Veg.) 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: About 30 species, mainly S.W. Asia. Represented in Pakistan by 6-7 species.


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Perennial or biennial herbs, resembling Paracaryum but differing in the nutlets with wings that are not reflexed, leaving the middle dorsal area clear.

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1 Corolla 9-12 mm long. Calyx lobes 3-5 mm long (2)
+ Corolla up to 4 mm long. Calyx lobes c. 1.5 mm long (3)
2 (1) Nutlets 8-10 mm long. Throat scales of corolla crescent-shaped, apex bilobed 1 Mattiastrum asperum
+ Nutlets 6-7 mm long. Throat and scales of corolla oblong 2 Mattiastrum karakoricum
3 (1) Basal leaves (90-) 100-130 x 25-40 mm ovate to obovate 5 Mattiastrum thomsonii
+ Basal leaves smaller, oblanceolate to oblong-spathulate (4)
4 (3) Wing of nutlets with teeth glochidiate at the margin (5)
+ Wing of nutlets with teeth not glochidiate at margin 6 Mattiastrum tibeticum
5 (4) Basal leaves many, 40-90 x 5-16 mm. Nutlets 5-8 mm long (6)
+ Basal leaves few, 1-2, 8-15(-17) x 1.5-2 mm. Nutlets 2-4 mm long 7 Mattiastrum bungei
6 (5) Plants with suberect hairs only. Fruiting pedicels 3-6 mm long. Style 1.5-2.mm long 4 Mattiastrum howardii
+ Plants with both appressed and subpatent hairs. Fruiting pedicels 1-2 mm long. Style up to 1 mm long 3 Mattiastrum himalayense
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