Hedbergia

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Hedbergia
Hedbergia abyssinica-MNHN-P-P032763.jpg
Holotype of Hedbergia abyssinica
(herbarium specimen).
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Orobanchaceae
Tribe: Rhinantheae
Genus: Hedbergia
L.
Species:
H. abyssinica
Binomial name
Hedbergia abyssinica
(Benth.) Molau
Synonyms[1]
  • Alectra abyssinica A.Rich.
  • Alectra petitiana A.Rich.
  • Bartsia abyssinica Benth.
  • Bartsia abyssinica Hochst. ex A.Rich.
  • Bartsia abyssinica var. nyikensis (R.E.Fr.) Hedberg & al.
  • Bartsia abyssinica var. petitiana (A.Rich.) Hedberg & al.
  • Bartsia elgonensis R.E.Fr.
  • Bartsia mannii Hemsl.
  • Bartsia nyikensis R.E.Fr.
  • Bartsia petitiana (A.Rich.) Hemsl.

Hedbergia is a monotypic genus of flowering plants, initially classified in Scrophulariaceae, and now within the broomrape family Orobanchaceae.[2] It contains a unique species, Hedbergia abyssinica.[1] It is an afromontane genus, widespread in grasslands and scrubs of the mountains of tropical Africa, and known from Ethiopia, Zaire, Uganda, Kenya, Tanzania, Malawi, Nigeria, and Cameroons.[2]

The genus name is a taxonomic patronym honoring the Swedish botanist Karl Olov Hedberg.

Description[]

Hedbergia abyssinica is a 1–2.5 feet (30–76 cm) high, very hispid perennial plant, with subsessile thick leaves, and densely crowded, white to pink or magenta flowers.[3][2]

Phylogeny[]

The phylogeny of the genera of Rhinantheae has been explored using molecular characters.[4][5] Hedbergia belongs to the core Rhinantheae. Hedbergia is closely related to Odontites, Bellardia, and Tozzia. In turn, these genera share phylogenetic affinities with Euphrasia, and then with Bartsia.

Genus-level cladogram of tribe Rhinantheae.
  Rhinantheae  
         

  Melampyrum  

 
 
 
         

  Rhynchocorys  

 
 
         

  Lathraea

 
 

  Rhinanthus

 
 
 
  Core Rhinantheae  
         

  Bartsia sensu stricto (Bartsia alpina)

 
 
         

  Euphrasia

 
 
         

  Tozzia

 
 

  Hedbergia
  (including Bartsia decurva + B. longiflora)

 
 
         

  Bellardia

 
 
         

  Neobartsia
(New World Bartsia)

 
 

  Parentucellia

 
 
 
 

  Odontites sensu lato
  (including
  and Bartsiella)

 
 
 
��
 
 
The cladogram has been reconstructed from nuclear and plastid DNA molecular characters (ITS, rps16 intron and trnK region).[4][5]

References[]

  1. ^ a b "Hedbergia abyssinica (Benth.) Molau – The Plant List". www.theplantlist.org. Retrieved 2020-05-03.
  2. ^ a b c Molau, Ulf (1988). "Hedbergia, a new genus of Scrophulariaceae from Africa". Nordic Journal of Botany. 8 (2): 193–195. doi:10.1111/j.1756-1051.1988.tb00500.x. ISSN 1756-1051.
  3. ^ "BARTSIA abyssinica Hochst. ex Benth. [family SCROPHULARIACEAE]". Global Plants. JSTOR. Retrieved 2020-05-03.
  4. ^ a b Těšitel, Jakub; Říha, Pavel; Svobodová, Šárka; Malinová, Tamara; Štech, Milan (2010-10-28). "Phylogeny, Life History Evolution and Biogeography of the Rhinanthoid Orobanchaceae". Folia Geobotanica. 45 (4): 347–367. doi:10.1007/s12224-010-9089-y. ISSN 1211-9520.
  5. ^ a b Scheunert, Agnes; Fleischmann, Andreas; Olano-Marín, Catalina; Bräuchler, Christian; Heubl, Günther (2012-12-14). "Phylogeny of tribe Rhinantheae (Orobanchaceae) with a focus on biogeography, cytology and re-examination of generic concepts". Taxon. 61 (6): 1269–1285. doi:10.1002/tax.616008.
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