M.Sc Botany

One can be a part of any reputed organization as a plant explorer, conservationist, ecologist, environment consultant, horticulturist, plant biochemist, nursery manager, genetics, molecular biologist, taxonomist, plant pathologist, environmental consultant and farming consultant.
Moreover the application of plant sciences improves the yield and supply of medicines, foods, fibers, building materials and other plant products. The knowledge of plant sciences is essential for development and management of forests, parks, waste lands, sea wealth etc.
Few of the industries which one can work with are:
Chemical Industry
Food Companies
Arboretum
Forest Services
Biotechnology Firms
Oil Industry
Land Management Agencies
Seed And Nursery Companies
Plant Health Inspection Services
National Parks
Biological Supply Houses
Plant Resources Laboratory
Educational Institutions

It is really difficult to say that Integrated MSc with Phd is available or not. Because there are a lot of private universities who are offering these courses in integrated manner. that is Masters degree along with Phd Degree at a stretch of 5 years (2+3) but it will be difficult to say that if that courses are accredited by national boards. because normally the boards accept regular courses.
They consider integrated courses as distance courses and hence have no equivalency with regular ones. hence it would be wiser if you pursue you MSc and then apply for Phd and complete Phd after completion of masters only. again you have asked for completing the integrated course in distance mode. sorry to say that already you are losing charm of the degree by choosing integrated one on top of that distance course mode will make it horrible.And even i don't think it will be available as integrated course in distance mode.
That means the universities might not be offering integrated courses in distance mode. you have to check out from the respective universities only.One of the universities which may offer this integrated degree is Centurion University.