1918] Blake,— Notes on the Clayton Herbarium 27 
chospora glauca Vahl. Tous ces échantillons sont accompagnés 
d’une étiquette signée de Michaux, avec le nom de Schoenus capitella- 
tus. 
“2, Herbier Drake. Cet herbier contient quatre feuilles de plantes 
de Michaux (Herbarium Richard). 1. Etiquette Schoenus fascicu- 
laris signée Michaux — deux échantillons: Pun qui est bien le Rhyn. 
fascicularis Vahl, Pautre qui est le R. Elliottii A. Gray non Dietr. 
2. Etiquette Schoenus (sans nom d’espéce) signée Michaux — C’est 
le R. glomerata Vahl! 3. Etiquette Schoenus capitulatus (sic) signée 
Michaux avec l’annotation: ‘Setulae retrorsum muricatulae! an S. 
‘glomeratus ? Walth.— Caroline.’ Ces échantillons ont été rapportés, 
avec raison, par Richard (Achille, non Louis Claude) au R. glauca 
Vahl. 4. Deux échantillons étiquette Schoenus distans, signée 
Michaux, avec l’annotation ‘S. glomeratus L.?. Caroline’. Ces 
échantillons ont été rapportés, avec raison, par Richard (Achille) au 
Rhyne. glomerata Vahl. 
“Résumé — Nos plantes de Michaux étiquetées Schoenus capitella- 
tus correspondent aux Rhync. glomerata Vahl.; R. Elliottii A. Gray 
non Dietr.; R. glauca Vahl.” 
Although, as will be seen from the above, the status of Michaux’s 
specimens is even more confused than was indicated by Dr. Gray, it 
seems best to avoid the creation of a new name for the species by adopt- 
ing Michaux’s S. capitellatus and typifying it by the undoubted speci- 
men of R. “glomerata” in the Michaux Herbarium. The species 
called Rynchospora glomerata in our current manuals then becomes 
RYNCHOSPORA CAPITELLATA (Michx.) Vahl, Enum. ii. 235 (1805). 
Rynchospora capitellata is a somewhat variable species. The great 
bulk of the material examined, from Maine and Ontario to Florida and 
Missouri, has the bristles of the perianth densely and retrorsely barbed. 
For this, the typical form of the species, the earliest varietal name is 
R. glomerata var. minor Britton, based on starved and depauperate 
specimens from the White Mountains not otherwise differing from the 
typical form of the species. Another plant, collected by E. B. Bar- 
tram in Pennsylvania and by Shull in Maryland, is peculiar in its 
upwardly barbed bristles. Two sheets, from North Carolina and 
Indiana, represent the R. glomerata var. discutiens of C. B. Clarke, 
characterized by its smooth bristles. All three of these forms have 
the achene contracted into a rather long stipitiform base. In the 
R. glomerata var. leptocarpa of Chapman, from Virginia to Florida 
