Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Charles H. Uhl"'
Autor:
Charles H. Uhl
Publikováno v:
Haseltonia. 12:31-40
Seven mostly long-stemmed species of Echeveria Series Nudae and many intermediate forms from the Andes of Venezuela to northern Peru have gametic chromosome numbers of 21 or 22, and a few are tetraploids with 42 or 44. They hybridize freely with each
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fb1553750659f5bfc948de6c3c8c2ac
https://doi.org/10.2985/1070-0048(2006)12[31:cahoex]2.0.co
https://doi.org/10.2985/1070-0048(2006)12[31:cahoex]2.0.co
Publikováno v:
Haseltonia. 11:138-149
Eric Walther classified three generally epiphytic species in his series Spicatae of Eche- veria.. Two of these, E. rosea (n = 34) and E. pittieri (n = 62) are distinctive, but E. chiapensis is not distinguishable from E. rosea. Certain plants from Oa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54d5aae552d21714ae4f1adbcd67e6ae
https://doi.org/10.2985/1070-0048(2005)11[138:cahoed]2.0.co
https://doi.org/10.2985/1070-0048(2005)11[138:cahoed]2.0.co
Autor:
Charles H. Uhl, Reid Moran
Publikováno v:
American Journal of Botany. 86:387-397
Villadia, ranging from Texas to Peru with some 25 species, has a rather distinctive thyrsoid to spicate inflorescence, and we keep it as a genus separate from Sedum. Twenty species show every gametic chromosome number from 9 to 17 and also 20‐22 an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d732057fd48b733f2c83ee154337b260
https://doi.org/10.2307/2656760
https://doi.org/10.2307/2656760
Autor:
Charles H. Uhl
Publikováno v:
American Journal of Botany. 83:216-220
Gametic chromosome numbers of 22, 32, 33, and 44 in five species of Lenophyllum suggest that they may be polyploids on a basic 11, but this number has not been found. Three species have 8-12 distinctively large chromosomes that do not pair with each
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8437a507eaf2a1412c10df1d7d4c8d68
https://doi.org/10.1002/j.1537-2197.1996.tb12699.x
https://doi.org/10.1002/j.1537-2197.1996.tb12699.x
Autor:
Charles H. Uhl
Publikováno v:
American Journal of Botany. 79:556-566
The 140+ species of Echeveria have more than 50 gametic chromosome numbers, including every number from 12 through 34 and polyploids to n = ca. 260. With related genera, they comprise an immense comparium of 200 + species that have been interconnecte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dae1ff9f98e360663aa9db1a57f52be0
https://doi.org/10.1002/j.1537-2197.1992.tb14593.x
https://doi.org/10.1002/j.1537-2197.1992.tb14593.x
Autor:
Charles H. Uhl
Publikováno v:
Journal of Heredity. 85:247-247
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cc1c872ad22e2fdde7b01ee497e69e0
https://doi.org/10.1093/oxfordjournals.jhered.a111447
https://doi.org/10.1093/oxfordjournals.jhered.a111447
Autor:
Charles H. Uhl
Publikováno v:
American Journal of Botany. 63:806-820
lar vegetatively and in their unusual inflorescence, their karyotypes are similar (n = 33), and they readily hybridize to produce fertile F1 hybrids. Study of hybrids of these two species with numerous others leads to the conclusion that each of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab2c0a0c47c808546ca59dc6ebaa4e5d
https://doi.org/10.1002/j.1537-2197.1976.tb11870.x
https://doi.org/10.1002/j.1537-2197.1976.tb11870.x
Autor:
Charles H. Uhl
Publikováno v:
American Journal of Botany. 69:1497-1511
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a99615c7b95844f741ef7e6d4687ad9d
https://doi.org/10.1002/j.1537-2197.1982.tb13399.x
https://doi.org/10.1002/j.1537-2197.1982.tb13399.x
Autor:
Charles H. Uhl, Reid Moran
Publikováno v:
American Journal of Botany. 60:648-656
A B S T R A C T Eleven of the 12 species of Pachyphytum, all that are available, have n = 31-33 standard chromosomes, or a multiple. Accessory chromosomes were found in some or all collections of four species; some cells of one plant have more than 5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d13edf1523b53d5c80c59d9fd501cbd
https://doi.org/10.1002/j.1537-2197.1973.tb05969.x
https://doi.org/10.1002/j.1537-2197.1973.tb05969.x
Autor:
Charles H. Uhl
Publikováno v:
American Journal of Botany. 48:114-123
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddcafe09888d76ac0d320e9d5c2f0bf2
https://doi.org/10.1002/j.1537-2197.1961.tb11612.x
https://doi.org/10.1002/j.1537-2197.1961.tb11612.x