I've not heard that name but Philodendron erubescens has been used to hybridize a number of plants including Ace of Spades and a bunch of others.
Some of these plants are simply natural variations that don't look exactly alike. I've seen fully grown plants that only have a green petiole and others with a red petiole. I've also seen green and red petioles on the same plant! It is just natural variation. I know little about hybrids since I like to study species plants but LariAnn would likely know the answers to those questions.
