The Orthotrichum strangulatum complex in eastern and interior North America has three species: O. strangulatum P. Beauv., O. parvulum Mitt. and O. lescurii Austin. All three form blackish green, rigid tufts and are restricted to calcareous substrates. Orthotrichum strangulatum has oblong-lanceolate leaves with partially thickened laminae and multistratose, recurved margins. Its oblong-elongate capsules have 16, reticulate-papillose, free exostome teeth. Orthotrichum lescurii has a more narrowly lanceolate leaf shape than O. strangulatum with unistratose laminae and revolute margins. Its ovate capsules have eight pairs of finely papillose exostome teeth. Orthotrichum parvulum has oblong-lanceolate leaves with unistratose laminae and plane leaf margins. It has oblong capsules with 16, reticulate-papillose, free exostome teeth. Orthotrichum peckii Sull. & Lesq. in Austin, O. porteri Sull. & Lesq. in Austin, and O. strangulatum var. missouricum Holz. ex Grout are synonyms of O. strangulatum. Orthotrichum strangulatum var. missouricum is lectotypified with a specimen from Holzinger's herbarium in minn.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 112 • No. 1