In A Vixenite Forest

"Hunters of the Sky Cave," IX.

"Scant light came through the leaves, but here and there on the high trunks glowed yellow phosphorescent fungi, enough to see by." (p. 217)

Enough to see by! That is a novel detail. Why would fungi have become phosphorescent? As this passage continues, it addresses three senses but does not describe anything else that is noticeably extraterrestrial:

"The air was warm, full of strange green scents. Out in the darkness there went soft whistlings, callings, creakings, patterings, once a scream which cut off in a gurgle, the sounds of a foreign wilderness." (ibid.)

We accept that the scents are strange, although they are recognizably "green," and that the wilderness is foreign although its sounds as described are familiar enough.