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A Digital Herbarium

Spinulum annotinum: morphological plasticity

Posted by on Apr 9, 2017 in Cultivated, Lycophytes | 2 comments

Some years ago I collected some living Spinulum annotinum in Southern Sweden, in the vicinity of Göteborg-Landvetter airport.I planted it...

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Pyrrosia platyphylla

Posted by on Oct 5, 2014 in Ferns, New Collections | Comments Off on Pyrrosia platyphylla

It’s always a special thrill to find a species you have described from herbarium material growing in the wild… Pyrrosia...

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Selliguea stenophylla

Posted by on Sep 28, 2014 in Herbarium Specimen, Observations | Comments Off on Selliguea stenophylla

Ferns in the genus Selliguea generally have a thick, leathery lamina, but this epiphytic species has one of the thickest… The sori...

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Microlepia manilensis

Posted by on Sep 26, 2014 in Ferns, Herbarium Specimen, New Collections | 2 comments

A large fern, with a beautiful rhizome (for those of us who love rhizomes almost more than the rest of a plant…). Notice the neat...

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Angiopteris sporangium dehiscence

Posted by on Sep 25, 2014 in Videos | 1 comment

When I sat down in an idle moment to watch a sporangium of Angiopteris opening, I was not expecting to see anything more interesting than...

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