Guide to Liverworts of Oregon: Calypogeia integristipula Steph.
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Calypogeia 1b oil bodies colorless > Calypogeia 2b underleaves entire to emarginate > Calypogeia 6a underleaf marginal cells short > Calypogeia integristipula
Synonym: None.
Special status: None, but it should be evaluated as a sensitive species.
Recognition: Underleaves quite entire or merely emarginate; marginal cells of the underleaves are not elongated as in C. neesiana.
Distribution: Grows on organic substrate in cool and moist habitats; exact distribution to be determined.
Comments: In the past I reported a 1998 collection from the northern Coast Range Mountains (Rambo 5083) as referable to this species; I have recently (February, 2012) reexamined the specimen and revised this identification: I believe it is C. muelleriana. My collection from Strawberry Wilderness Area is not clearly identifiable; it has slightly elongated marginal cells on the underleaves so might be closer to C. neesiana. The Union County record illustrated below is typical C. integrifolia.
Toluidine blue stain. Chicken Hill Road, Union County, Oregon. DHW 8333a.
Toluidine blue stain. Chicken Hill Road, Union County, Oregon. DHW 8333a.
Toluidine blue stain. Chicken Hill Road, Union County, Oregon. DHW 8333a.
Toluidine blue stain. Chicken Hill Road, Union County, Oregon. DHW 8333a.
Leaf. Strawberry Lake, Grant Co., Oregon. DHW 2162
Underleaves. Strawberry Lake, Grant Co., Oregon. DHW 2162
Underleaves. Strawberry Lake, Grant Co., Oregon. DHW 2162