Hypericum huber-morathii

Hypericum huber-morathii is a flowering plant in the family Hypericaceae, section Adenosepalum, and the type species of the Hypericum huber-morathii group.

Hypericum huber-morathii
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Hypericaceae
Genus: Hypericum
Section: Hypericum sect. Adenosepalum
Species:
H. huber-morathii
Binomial name
Hypericum huber-morathii

Taxonomy

Hypericum huber-morathii was first described by British botanist Norman Robson in 1967 in Notes Roy. Bot. Gard. Edinburgh 27.[1] The species was one of very few left out of Robson's initial comprehensive monograph of the genus Hypericum, but was formally recognized and placed in an addendum issue in Phytotaxa in 2012.[2] The species is an intermediate form between Hypericum lanuginosum f. subhirtella and Hypericum minutum.[3]

Description

The species is a perennial herb that grow from 8 to 15 centimeters tall. It is glabrous with few stems and is erect from its decumbent base. Its stems are slender and brittle and lack glands. The internodes are 6–14 mm long, meaning they exceed the length of the leaves which grow only 0.5 mm long. They are petiolate or subsessile and spreading. The lamina are around 7 by 5 mm in size and are ovate to oblong and rather thick. The species has 3-12 flowers from 2 (rarely 3) nodes, sometimes with flowering branches from 1-2 nodes below. The flowers are around 8 mm in diameter with ovoid buds that are rounded. The sepals are about 2 by 1 mm in size, are equal, imbricate, and elliptical. The laminar glands are black, numerous, and punctiform with black marginal glands. The petals are yellow and rounded. There are generally 18 to 20 stamens. The ovary is 1.5 mm long with 3 styles.[4]

Similar Species

The species is closest in appearance and relation to two other Turkish species of Hypericum: H. minutum and H. sechmenii. The biggest differences between the species is in their leaves, flowering times, and pollen form.[5]

Comparison between H. huber-morathii, H. minutum, and H. sechmenii
Characteristic H. huber-morathii H. sechmenii H. minutum
Stem length 8–10 cm (3.1–3.9 in) 3–6 cm (1.2–2.4 in) 1–3 cm (0.39–1.18 in)
Leaves Placed opposite, stretched to broad egg-shaped Overlapping, egg-shaped or elliptical Placed opposite, broadly egg-shaped or almost circular
Inflorescence 3-12 flowers 3-5 flowers 1-3 flowers
Sepals None have cilia, have many superficial black dots Most have cilia, have 2-3 superficial black dots Few have cilia, have many superficial black dots
Petals Sometimes have superficial black dots (No amber glands Have superficial amber dots or lines Have superficial amber glands
Flowering Period June June–July July
Distribution Mediterranean Turkey Mediterranean

Distribution and habitat

The species' range is across the southwestern Anatolia region of Turkey.[6][7] It is found among limestone rocks at altitudes of 1200–1500 feet above sea level.[4]

References
  1. "Clusiaceae Hypericum huber-morathii N.Robson". International Plant Names Index (IPNI). 2005. Retrieved 2018-12-22.
  2. ROBSON, NORMAN K. B. (2012-11-16). "Studies in the genus Hypericum L. (Hypericaceae) 9. Addenda, corrigenda, keys, lists and general discussion". Phytotaxa. 72 (1): 1. doi:10.11646/phytotaxa.72.1.1. ISSN 1179-3163.
  3. ROBSON, NORMAN K.B. (2002-10-31). "Studies in the genus Hypericum L. (Guttiferae) 4(2). Section 9. Hypericum sensu lato (part 2): subsection 1. Hypericum series 1. Hypericum". Bulletin of the Natural History Museum, Botany Series. 32 (2). doi:10.1017/s096804460200004x. ISSN 0968-0446.
  4. "Nomenclature | Hypericum online". hypericum.myspecies.info. Retrieved 2018-12-22.
  5. Ocak, Atila; Savaroglu, Filiz; Potoğlu Erkara, İsmuhan; Koyuncu, Onur (2009). "Hypericum sechmenii (Hypericaceae), a New Species from Central Anatolia, Turkey". Annales Botanici Fennici. 46 (6): 591–594. doi:10.5735/085.046.0616. ISSN 0003-3847. S2CID 86751774.
  6. "Hypericum huber-morathii N.Robson". www.gbif.org. Retrieved 2018-12-22.
  7. "Hypericum huber-morathii N.Robson | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2018-12-22.
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