Using reflection in Go to get the name of a struct

I found this question with this great answers:

How to find a type of a object in Golang?

I played around with the answer and tried to get the name of a struct in the same way:

package main

import (
        "fmt"
        "reflect"
)

type Ab struct {

}

func getType(myvar interface{}) string {
        return reflect.TypeOf(myvar).Name()
}

func main() {
        fmt.Println("Hello, playground")

        tst := "string"
        tst2 := 10
        tst3 := 1.2
        tst4 := new(Ab)

        fmt.Println(getType(tst))
        fmt.Println(getType(tst2))
        fmt.Println(getType(tst3))
        fmt.Println(getType(tst4))

}

Go playground: http://play.golang.org/p/tD8mygvETH

But the output is:

Hello, playground
string
int
float64


Program exited.

Expected output would be:

Hello, playground
string
int
float64
Ab

Program exited.

I tried to figure out by reading the documentation but didn’t find the issue about that. So, sorry for the very general question, but:

What’s the reason, reflect.TypeOf().Name() does not work with (this) struct(s)?