Anonymous - s.n. - United States
Atha - 490 - United States
Barlow - s.n. - United States
Billiet - 6151 - Argentina
Bourgeau - 1408 - Mexico
Edwards - 321 - Mexico
Eggert - s.n. - United States
Engelmann - s.n. - Italy
Engelmann - s.n. - United States
Grant - 15717 - Iran
Gregg - 404 - Mexico
Jacot Guillarmod - 9950 - South Africa
Jones - 451 - Mexico
Lloyd - 37 - Mexico
Locke - 27 - Paraguay
Locke - 28 - Paraguay
Locke - 84 - Paraguay
MacKee - 42623 - New Caledonia
Martin - s.n. - Mexico
Matuda - 38563 - Mexico
Matuda - 38752 - Mexico
Mearns - 1290 - United States
Meyer - s.n. - United States
MONTENEGRO - 2 - Ecuador
Nelson - 22584 - United States
Orcutt - 6198 - United States
Parry - s.n. - United States
Poole - 1484 - Mexico
Reed - 138333 - United States
Reed - 22750 - United States
Reed - 93225 - United States
Reed - 96424 - United States
Reverchon - 1684 - United States
Reverchon - s.n. - United States
Rose - 8981 - Mexico
Saldias Paz - 548 - Bolivia
Solomon - 18503 - Bolivia
Spichiger - 5194 - Paraguay
Trelease - 162 - United States
Trelease - s.n. - Mexico
Wislizenus - 533 - United States
Yucca