AUSTRIA, 1966, Scott 766 and its special cancel

 
ALBANIA, 1987, Wulfenia baldaci Dege, Scott 2248

AUSTRIA, 2007, stamp personalized by the Wulfenia stamp club from Hermagor, Austria.
Wulfen discovered wulfenia on Gartnerkogel, a mountain southwest of Hermagor.
The painting is by Max Gangl, a native of that village.

ALBANIA, 2007, two images of Wulfenia baldaccii from Albania with labels

Father Franz Xaver Freiherr von Wulfen was born in Belgrade, son of the Austrian lieutenant field-marshal, Christian Friedrich von Wulfen. After studies at Kaschau, Hungary, he joined Jesuits in 1745, studied and taught at the Theresianum in Vienna, at Graz, Neusohl, Gorz, Lailbach, and from 1764, when the Jesuits were suppressed, until his death in 1805, at Klagenfurt. He was a distinguished scholar and botanist especially of the Eastern Alps. Many plants bear the species or subspecies name "Wulfenii" in his honor. Two species of the genus Wulfenia are represented philatelically: Wulfenia carinthiaca from Austria, and Wulfenia baldaccii from Albania.

In addition to wulfenia, other botanical items are named for him, among them Yellow Houseleek (Sempervivum wulfenii) and Mediterranean Spurge, a spectacular winter flowering garden plant, the largest variety of the euphorbia family, very popular with landscapers (Euphorbia wulfenii).

 
AUSTRIA, 1979, special cancel, 200th anniversary of discovery of Wulfenia

 
AUSTRIA, 1980, special cancel, the 175th anniversary of the death of Fr. Franz Wulfen, SJ
showing a mineral named for him, Wulfenite
USA, 1995, special show cancel

In 1775, Fr. Wulfen had supplied the first detailed description of the mineral lead molybdenum complete with colored illustrations showing crystals. He had discovered it in Austrian mines near Bleiberg and Carinthia. The mineralogist Heidinger named the ore wulfenite in 1845 to honor Fr. Wulfen's mineralogical research. Other stamps and souvenir sheets below illustrate the mineral wulfenite. More

  
CHAD, 2000 dated 1999, Scott 839
MOROCCO, 1987, Scott 649
NAMIBIA, 1991, Scott 687

   
SOUTH WEST AFRICA, 1989, Scott 637
SLOVENIA, 1997, Scott 286 & its FDI cancel

 
THE UNITED STATES, 1992, Scott 2703
YUGOSLAVIA, 1980, Scott 1501

 
CHAD, 1998, second from top, Scott 788B
CHAD, 2001, lower left, Scott 934c

 
COMORO ISLANDS, 1998, on the right, Scott 933
GUINEA-BISSAU, 2004, upper left

 
MALI, 1997, the top center has been identified as barite or wulfenite, Scott 949, 952
NAMIBIA, 1995 postal card, both stamp and main image are wulfenite

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