Echinopsis species




 
https://08511630493324166816.googlegroups.com/attach/ed313ba649499/IMG_20150728_072924%20(1).jpg?part=0.2&view=1&vt=ANaJVrENGpZD-KGFH5fiJvO7pmUnj9Acw-IssxUMk_U6jX_UySx1QUPxer-Xwvro6TR46YjlnXRmwxKfT1hveXlFOhZs6fKB_rhUIiWvmiOwiWLzqMYXHYo
https://08511630493324166816.googlegroups.com/attach/ed313ba649499/IMG_20150728_072900.jpg?part=0.1&view=1&vt=ANaJVrGttz9bWcoWhB7TyYJKHcZaIpIHQ9_tZmhDZSQXJKEcysSK7S6ZC5Tu05cFt1NIwsvBAQ00Z9pk4aqv96M-JFR-exV1rYLK4pXhIvmjEsBR4YcmjJ4

Fwd: cactus : 3 posts by 2 authors.
kindly hep me for id of cactus cultivated in DCA, college, campus.
mammilaria cactus blossom
cant go further because the cactus itself has to be photographed to show details
Echinopsis.... Oxygona maybe?  Or maybe just some hybrid?