Is this c. nobilior?

[isurus79]

Originally Posted by Autumn Child

This is what i am afraid of. However, the plant did not produce any single leaf pseudobuld and its pseudobulb is very large, much larger than my walkerianas bulb. The flower is also much bigger than my walkeriana flowers. It also smells quite different.

Most mequitae i see on the internet have overlapping side lopes while mine is overlapping. The nose and lips is also protuding forward typical of nobilior. I feel that flower is more typical of nobilior.

This is also its first flowering and the flowering condition is not optimal as it flower just 2 cm away from the fluorescent light which gives off considerable heat and brightness. I will try to flower it next year and i will update this post with the result of the second flowering under better condition

I have to say that nobilior bulbs can be a bit taller than many walkeriana varieties, so having this plant being a bit taller than pure walkeriana is not strange. I don't see anything unusual about the vegetative habit of your plant that would make think its not mesquitae. The growth habit seems to be pretty normal for this cross. The coloration of the lip is definitely not pure nobilior and if it were me, I would feel comfortable lableing it as mesquitae.