| |
Name |
|
|
Issues/Designs |
| |
Wyoming State Seal |
— |
— |
d - Wyoming State Seal Uni..tes 1940 |
| |
Wyoming toad |
— |
— |
d - Wyoming toad Uni..tes 1996 |
| |
Wyspianski |
— |
— |
d - Wyspianski Poland 1958 |
| |
Stanisław Wyspiański |
1869 |
— |
Girl by Stanislaw Wyspianski birth - 150th Anniversary of the Birth of ... (Poland) syns. Stanislaw Wyspianski |
| |
Stanisław Wyspiański birth |
1869 |
— |
- 150th Anniversary of the Birth of ... (Poland) |
| |
Stefan Wyszynski |
— |
— |
d - Stefan Wyszynski Poland 1992 |
| |
Stefan Cardinal Wyszynski |
1901 |
— |
birth - ... 100th (Poland) d - Stefan Ca..Wyszynski Poland 2001 |
| |
Stefan Cardinal Wyszynski birth |
1901 |
— |
- ... 100th (Poland) |
| |
X-15 shock wave |
— |
— |
d - X-15 shock wave Uni..tes 2006 |
| |
X-15 thermal image |
— |
— |
d - X-15 thermal image Uni..tes 2006 |
| |
X-36 |
— |
— |
d - Concorde & X-36 Niger 1997 syns. McDonnell Douglas X-36 |
| |
X-ray astronomy satellite "Suzaku" |
— |
— |
d - X-ray ast.. "Suzaku" Japan 2008 |
| |
X-ray diffraction pattern |
— |
— |
d - Max von Laue & X-ray dif..n pattern DD 1979 |
| |
X-ray machine |
— |
— |
d - X-ray machine Germany 1978, etc (2) |
| |
X-ray technician |
— |
— |
d - X-ray technician Zambia 1964 |
| |
X-ray tube |
— |
— |
d (4) - W.C. Röntgen & X-ray tube Cze..lic 1995, Wilhelm Conrad Röntgen & first X-ray tube Germany 1951, X-ray tube Austria 1991, ... |
| |
X-rays |
1895 |
— |
- 100th Anniversary of ... (Nor..nia) |
| |
X-up |
— |
— |
d - X-up Korea 2009 |
| |
X-wing Starfighter |
— |
— |
d (2) - X-wing Starfighter (2007) Uni..tes 2007, X-wing Starfighter (2015) Gre..ain 2015 |
| |
X2 train |
— |
— |
d - X2 train Sweden 1988 |
| |
X40 Train |
— |
— |
d - X40 Train Sweden 2006 |
| |
Norbert of Xanten |
— |
1134 |
St Norbert von death - ... 850th (Germany) syns. St Norbert von Xanten |
| |
St Norbert von Xanten death |
1134 |
— |
- ... 850th (Germany) |
| |
Xanthi - Thrace |
— |
— |
d - Xanthi - Thrace Greece 2012 |
| |
Xanthichthys mento |
— |
— |
d - Xanthichthys mento Pit..rns 1984 |
| |
Xanthichthys ringens |
— |
— |
d - Xanthichthys ringens Gre..nes 1991, etc (2) |
| |
Xanthio crab |
— |
— |
d - Xanthio crab & map of Arorae Kiribati 1985 |
| |
Xanthopan morganii |
— |
— |
syns. Xanthopan, Xanthopan morganipredicta |
| |
Xanthopimpla pedator |
— |
— |
d - Xanthopimpla pedator Chi..ROC 2012 |
| |
Xanthoria elegans |
— |
— |
d - Xanthoria elegans Bri..ory 1989 |
| |
Xanthoria parietina |
— |
— |
d (4) - Xanthoria parietina (1981) Lie..ein 1981, Xanthoria parietina (1999) Ålands 1999, Xanthoria parietina (2017) Iceland 2017, ... |
| |
Emanuel Xanthos |
— |
— |
d - Emanuel Xanthos Greece 1947 |
| |
Xanthosoma indica |
— |
— |
d - Xanthosoma indica Maldives 1987 |
| |
Xanthosoma taioba |
— |
— |
d - Xanthosoma taioba Brazil 2024 |
| |
Xanthospiloperyx mozambica |
— |
— |
d - Xanthospi..mozambica Moz..que 1953 |
| |
Xanthostemon |
— |
— |
d - Xanthostemon New..nia 1958 |
| |
Xanthostemon aurantiacum |
— |
— |
d - Xanthoste..rantiacum New..nia 1983 |
| |
Xanthostemon aurantiacus |
— |
— |
d - Xanthoste..rantiacus New..nia 2015 |
| |
Xanthostemon francii |
— |
— |
d - Xanthostemon francii New..nia 1964 |
| |
Xanthostemon fructicosus |
— |
— |
d - Xanthoste..ucticosus Phi..nes 2007 |
| |
Xanthostemon sulfureus |
— |
— |
d - Xanthoste..sulfureus New..nia 2015 |
| |
Xauen fortress |
— |
— |
d - plane over Xauen fortress Spa..cco 1953 |
| |
Xavier Catholic Church |
— |
— |
d - Xavier Ca..ic Church Bahamas 1982 |
| |
Xavier exposition |
1931 |
— |
- Por..dia |
| |
Xavier School |
1956 |
— |
opening - 50th Anniversary of the ... (Phi..nes) |
| |
Xavier School opening |
1956 |
— |
- 50th Anniversary of the ... (Phi..nes) |
| |
Xavier University |
1933 |
— |
opening - 50th Anniversary of ... (Phi..nes) syns. Xavier University – Ateneo de Cagayan |
| |
Xavier University opening |
1933 |
— |
- 50th Anniversary of ... (Phi..nes) syns. Xavier University founding |
| |
Francis Xavier |
1506 |
— |
St. birth - 5th Centenary of the Birth of St. ... (Portugal) syns. Francisco Xaver, Saint Francis Xavier, St. Francis Xavier |
| |
St. Francis Xavier birth |
1506 |
— |
- 5th Centenary of the Birth of St. ... (Portugal) |
| |
Francisco Candido Xavier |
1910 |
— |
birth - Centenary of birth of ... (Brazil) |
| |
Francisco Candido Xavier birth |
1910 |
— |
- Centenary of birth of ... (Brazil) |
| |
Joaquim Jose Da Silva Xavier |
— |
— |
d - Joaquim J..va Xavier DO 2014 |
| |
Joaquim Jose da Silver Xavier |
1789 |
— |
birth - 200th Anniversary of the Birth of ... (Uruguay) |
| |
Joaquim Jose da Silver Xavier birth |
1789 |
— |
- 200th Anniversary of the Birth of ... (Uruguay) |
| |
St Francis Xavier |
1552 |
1552 |
birth - 500th Anniversary of birth of ... (Italy) death (5) - ... death 400th (Por..dia), ... 400th (Portugal), ... 400th (Macao), ... d - St Francis Xavier Por..dia 1946, etc (3) |
| |
St Francis Xavier birth |
1552 |
— |
- 500th Anniversary of birth of ... (Italy) |
| |
St Francis Xavier death |
1552 |
— |
(5) - ... death 400th (Por..dia), ... 400th (Portugal), ... 400th (Macao), ... |
| |
St. Franz Xavier |
1506 |
— |
birth - 500th Anniversary of the Birth of ... (Colombia) |
| |
St. Franz Xavier birth |
1506 |
— |
- 500th Anniversary of the Birth of ... (Colombia) |
| |
XC Pacific, India |
— |
— |
d - XC Pacific, India Antigua 2004 |
| |
XCOR Space Expeditions emblem |
— |
— |
d - XCOR Spac..ns emblem Curacao 2014 |
| |
xebec |
— |
— |
d (4) - Tajo xebec Spain 1998, xebec Spain 1964, etc (2), xebec 17th Century Bulgaria 1985, ... syns. Chebeck |
| |
Xema sabini |
— |
— |
d - Xema sabini Gui..sau 2011, etc (2) |
| |
Xenacanthidae |
— |
— |
d - Xenacanthidae Kyr..tan 2012 |
| |
Xenacanthus |
— |
— |
d - Xenacanthus Comoros 1998 |
| |
Xenia puertogalerae |
— |
— |
d - Xenia puertogalerae Phi..nes 1994 |
| |
Xenia sp. |
— |
— |
d - Xenia sp. Pap..nea 1982 |
| |
Xenochrophis trianguligerus |
— |
— |
d - Xenochrop..guligerus Malaysia 2006 |
| |
Xenomystus nigri |
— |
— |
d - Xenomystus nigri CF 2001 |
| |
Xenophon |
— |
— |
d - Xenophon Greece 2019 |
| |
Xenophontos |
— |
— |
d - Xenophontos Mou..hos 2012 |
| |
Xenophora crispa |
— |
— |
d - Xenophora crispa Algeria 2002 |
| |
Xenophora digitata |
— |
— |
d - Xenophora digitata Ivo..ast 1972 |
| |
Xenophora pallidula |
— |
— |
d - Xenophora pallidula Phi..nes 1980 |
| |
Grigorios Xenopoulos |
— |
— |
d - Grigorios Xenopoulos Greece 1997 |
| |
Xenopus laevis |
— |
— |
d - Xenopus laevis Tanzania 1995, etc (5) |
| |
Xenopus muelleri |
— |
— |
d - Xenopus muelleri Laos 1993 |
| |
Xenospingus concolor |
— |
— |
d - Xenospingus concolor Peru 2014 |
| |
Xenostegia tridentata |
— |
— |
d - Xenostegi..ridentata Botswana 2011 |
| |
Xenotilapia kilesa |
— |
— |
d - Xenotilapia kilesa Burundi 2014 |
| |
Xeranthemum annuum |
— |
— |
d - Xeranthemum annuum Romania 1975 syns. Everlasting Immortelle |
| |
Xeranthemum inapertum |
— |
— |
d - Xeranthem..inapertum Tunisia 1994 |
| |
Xerochlamys diospyroidea |
— |
— |
syns. Leptolaena diospyroidea |
| |
Xerocomellus chrysenteron |
— |
— |
d - Xerocomel..ysenteron ST 2014 syns. Boletus chrysenteron |
| |
Xerocomus amazonicus |
— |
— |
d - Xerocomus amazonicus Gre..nes 2011 |
| |
Xerocomus badius |
— |
— |
d (7) - Xerocomus badius (1985) Mongolia 1985, Xerocomus badius (1999) Guyana 1999, etc (2), Xerocomus badius (2013) Lux..urg 2013, ... |
| |
Xerocomus brasiliensis |
— |
— |
d - Xerocomus..siliensis St...ent 1992 |
| |
Xerocomus chrysenteron |
— |
— |
d - Xerocomus..ysenteron Cambodia 1997, etc (4) |
| |
Xerocomus coccolobae |
— |
— |
d - Xerocomus coccolobae Gre..nes 1986, etc (2) |
| |
Xerocomus guadelupae |
— |
— |
d - Xerocomus guadelupae Dominica 1987, etc (2) |
| |
Xerocomus hypoxanthus |
— |
— |
d - Xerocomus..poxanthus Grenada 1991 |
| |
Xerocomus iludens |
— |
— |
d - Xerocomus iludens Nic..gua 1985 |
| |
Xerocomus parasiticus |
— |
— |
d - Xerocomus..rasiticus Poland 1980, etc (3) |
| |
Xerocomus rubellus |
— |
— |
d (4) - Xerocomus rubellus (1995) Guinea 1995, Xerocomus rubellus (1998) ST 1998, Xerocomus rubellus (1999) Tanzania 1999, ... |
| |
Xerocomus spadiceus |
— |
— |
d - Xerocomus spadiceus Guyana 1999 |
| |
Xerocomus subtomentosus |
— |
— |
d (3) - Xerocomus..omentosus (1985) Laos 1985, Xerocomus..omentosus (1989) Cambodia 1989, etc (2), Xerocomus..omentosus (2006) Iceland 2006 syns. Xerocomus subtomentos, Yellow cracked Boletus |
| |
Xeromphalina campanella |
— |
— |
d - Xeromphal..ampanella Togo 1995, etc (2) |
| |
Xeromphalina tenuipes |
— |
— |
d (5) - Xeromphal.. tenuipes (1980) Rwanda 1980, Xeromphal.. tenuipes (1989 Antigua) Antigua 1989, Xeromphal.. tenuipes (1989 Grenada) Grenada 1989, ... |
| |
Xeronema moorei |
— |
— |
d - Xeronema moorei New..nia 1981 |
