They are a (female) flower part called a calyx, the individual flower part that grow in quantity to form the flower buds we all love so much.
The calyxes growing on the plant stems are known as "primordia" and are the first indicators of a plants sex. Since they form earlier than the true flowers, they will grow and mature much earlier than the actual flowers themselves, thereby being swollen and covered in trichomes long before the true flowers have grown and matured. These primordia or "pre-flowers" as some people call them, are completely normal and are not an indication of any problems.
Male flowers generally grow on stems and do not have pistils or as many trichomes as female calyxes. There are no such things as "male seeds", seeds are produced inside the female calyxes and under normal circumstances, can be either male or female seeds.
Hermaphroditism is again completely different, either growing both female calyxes and male flowers side by side or female calyxes with male stamens growing from within the calyx and from a common base. For some pictures of male flowers and hermaphroditic calyxes, have a look at my diary "cannabis conundrums" and in week 7 you will find these pictures, as well as some other pictures of some of the weird and wonderful things cannabis plant are capable of growing and this may help you to identify things with/on your own plants more easily and assure you that what you are now seeing is perfectly normal.
Hope this helps,.......
Organoman.