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Fam.: Hypericaceae / St.John's Wort Fam.      

Genus:  Hypericum  L.
 

Authors:
   BOMBLE:  Ferdinand Wolfgang Bomble (1969 - ), German mathematician and botanist in Aachen
   L.:  Carl von Linné (Linnaeus, 1707 - 1777), Swedish naturalist who introduced the binary naming system for plants and animals
 

Etymology:
   Hypericum:   Greek plant name
   patzkei:   Erwin Alfred Patzke (1929 - 2018), German botanist at Aachen (PATZKE)
 

From the Hypericum desetangsii group BOMBLE separated Hypericum patzkei in 2019. From the wide spread Hypericum perforatum it differs by acute-angled side branches, leaves with only few oil glands, buds with striate dark oil glands, relative narrow bracts, and an entire or only weakly denticulate tip of the petals. Hypericum patzkei is currently known from Aachen and neighbouring part of Belgium.

 

Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 1:  Hypericum patzkei / Patzke's St. John's-Wort
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 2:  Hypericum patzkei / Patzke's St. John's-Wort
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 3:  Hypericum patzkei / Patzke's St. John's-Wort
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 4:  Hypericum patzkei / Patzke's St. John's-Wort
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 5:  Hypericum patzkei / Patzke's St. John's-Wort
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 6:  Hypericum patzkei / Patzke's St. John's-Wort
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 7:  Hypericum patzkei / Patzke's St. John's-Wort
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 8:  Hypericum patzkei / Patzke's St. John's-Wort
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 9:  Hypericum patzkei / Patzke's St. John's-Wort
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 10:  Hypericum patzkei / Patzke's St. John's-Wort
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 11:  Hypericum patzkei / Patzke's St. John's-Wort (in bud)
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 12:  Hypericum patzkei / Patzke's St. John's-Wort (in bud)
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 13:  Hypericum patzkei / Patzke's St. John's-Wort (in bud)
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 14:  Hypericum patzkei / Patzke's St. John's-Wort (fruit)
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 15:  Hypericum patzkei / Patzke's St. John's-Wort
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 16:  Hypericum patzkei / Patzke's St. John's-Wort
D Aachen 27.7.2020
Hypericum patzkei / Patzke's St. John's-Wort, D Aachen 27.7.2020
Fig. 17:  Hypericum patzkei / Patzke's St. John's-Wort
D Aachen 27.7.2020

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