Abstract
Eragrostis scaligera Salzm. ex Steud., a native of northeastern Brazil, is redescribed and reported from Florida, the first record from North America. It has been mistaken forE. bahiensis Schrad. in Schult.,E. maypurensis (H.B.K.) Steud., andE. rufescens Schrad. in Schult., but is distinct in having axillary, intravaginal inflorescences in addition to terminal ones, and smooth, shining caryopses in which the longitudinal axis of the embryo is oriented at 45–90° to the axis between the style and attachment scars. The plants are tetraploid with the chromosome number 2n = 40 (n = 20).
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Literature cited
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Doell, J. C. 1878.Eragrostis.In C. F. P. von Martius, Flora Brasiliensis2(3) : 136–158. Leipzig.
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Jedwabnick, E. 1924.Eragrostis specierum imprimis ad herb. Berol., Hamburg., Monac., Regi-mont., digestarum conspectus. Bot. Arch.5: 177–216.
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The Department of Botany, North Carolina State University, Raleigh, supported this study while I was on its staff.
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Koch, S.D. Eragrostis scaligera ( Gramineae, Eragrostoideae) An overlooked species. Brittonia 27, 123–126 (1975). https://doi.org/10.2307/2805472
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Keywords
- Axillary Branch
- Perennial Bunchgrass
- Dark Brown Spot
- Terminal Panicle
- Attachment Scar