You can get these long distance busses from here ,
60 Colombo -Deniyaya/Akuressa/Urubokka/Deiyandara
32 Colombo -Kataragama/Tangalle/Hambanthota/Lunugamwehera/Angunukolapelessa/Middeniya
42 Colombo Morawaka/Neluwa/Deniyaya/Udugama
26 Colombo - Hakmana/Walasmulla/Middeniya/Deiyandara
02 Colombo -Matara/Galle/Ambalangoda/Yatiyana/Urubokka/Akuressa
64 Galle Hatton/Balangoda
Intensity Passenger Trasit point between colombo rd and kaluthara horana road
Is a normal bus stop for various bus lines
Buses from Colombo stops here, but don't forget to say it :) you can reach here by intercity bus (small bus with conditioner) number 2 (bus endpoint is Galle)
Bus halting place
Buses from Colombo stops here. Express buses and non express buses stops here.
This junction fullfilled with several star hotels and the bus stop heads to Matara Galle Alutgama Mathugama Deniyaya Ambalangoda etc (to downsouth)