They are all labeled as yuri on mal but some of them are not really yuri. many of them are hentai.
Suashi no Houkago 1/10
Oniisama e... 7/10
Utsukushiki Sei no Dendoushi Reirei 2/10
Nageki no Kenkou Yuuryouji 1/10
Fushigi no Kuni no Miyuki-chan 4/10
Stainless Night 6/10
Kojin Jugyou (private psycho lesson) 3/10
Hen 1/10
Shoujo Kakumei Utena 7/10
Utena movie 5/10
G-Taste 6/10
Koutetsu Tenshi Kurumi 2 6/10
Cream Lemon 6.5/10
Yami to Boushi to Hon no Tabibito 3/10
Docchi mo Maid 2/10
Maria-sama ga Miteru 8/10
Re: Cutey Honey 8/10
Mai-HiME 6/10
Kannazuki no Miko 5/10
Kashimashi: Girl Meets Girl 5.5/10
Simoun 10/10 (not actually a perfect anime, but it is the best yuri I have seen)
Strawberry Panic 6/10
Ice 3/10
Blue Drop 6/10
CandyBoy 5/10
Mnemosyne: Mnemosyne no Musume-tachi 5/10
Shoujo Sect 7/10
Maria†Holic 6/10
Aoi Hana 9/10
Kanamemo 7/10