128 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Hordeum flosculis omnibus hermaphroditis, involucris flosculos crassitie & 

 longitudine superantibus. Gron. Fl. Virg. 1: 13. 1739. 

 Clayton, no. 446. This is cited by Linnaeus under Elymus virginicus. The Clayton 

 specimen could not be found. 



Coix seminibus ovatis. Linn. Hort. Cliff. Gron. Fl. Virg. 1: 114. 1739. 



Clayton, no. 67. This is cited by Linnaeus under Coixlachrymajobi. The speci- 

 men in the British Museum is a species of Carex labeled C. folliculata. Gronovius's 

 further description, " Gramen Lacrymae Jobi affini, fructu in spicam congesto," ap- 

 plies to this specimen of Carex, and we may consider it an error of determination. 



Coix seminibus angulatis. Linn. Hort. Cliff. Gron. Fl. Virg. 1: 114. 1739. 



Clayton, no. 445. This is not cited by Linnseus in the first edition of his Species 

 Plantarum. In the second edition he cites Gron. 144 [error for 114] under Tripsacum 

 dactyloides. Clayton's specimen is Tripsacum dactyloides (L.) L. 



Cenchrus capitulis spinosis tomentosis. Gron. Fl. Virg. 1: 122. 1739. 



Clayton, no. 206. This is cited by Linnaeus under Cenchrus tribuloides. The speci- 

 men is Cenchrus tribuloides L. (C. rnacrocephalus (Doell) Scribn.), the large-burred, 

 maritime form and not the inland C. carolinianus Walt. 



Andrapogon pedunculis conjugatis in medio pilosis, etc. Roy. prodr. Gron. Fl. 

 Virg. 2: 132. 1743. 

 Under this are included two plants: 1. " Gramen ischaemum spicis plumosis 

 aristaiis, efoliorum alis exeuntibus." Clayton, no. 460. This is Andropogon virginicus 

 L. In the Species Plantarum (page 1046. 1753) under Andropogon virginicus Lin- 

 nseus cites Roy. lugbd. as above and Gronovius by page only, omitting the Grono- 

 viarj diagnosis. 2. " Lagurus spicis inter folia brevia ad culmi summitatem dense fasci- 

 culatim congestis," Clayton, no. 606,« which is Andropogon glomeratus (Walt.) B. S. P. 

 This is not cited by Linnaeus. Gronovius cites the same specimen under Lagun 

 spicis oblongis, etc., page 135. 



Andrapogon spicis conjugatis, calycibus hirsutis. Roy. prodr. Gron. Fl. Virg. 

 2: 133. 1743. 

 Clayton, no. 602. This is cited by Linnaeus under Andropogon hirtum. The speci- 

 men is Andropogon scoparius Michx. 



Andrapogon culmo paniculate Gron. Fl. Virg. 2: 133. 1743. 



Clayton, no. 601. This is cited by Linnaeus under Andropogon alopecuroides. The 

 specimen is Erianthus divaricatus (L.) Hitchc. (E. alopecuroides (L.) Ell.). 



Andrapogon foliis arundinaceis. Gron. Fl. Virg. 2: 133. 1743. 



Clayton, no. 687. This is not cited by Linnaeus. The specimen is Erianthus con- 

 tortus Ell. 



Andrapogon folio superiori spathaceo, pedunculis lateralibus oppositis uni- 

 floris aristis globosis. Gron. Fl. Virg. 2: 133. 1743. 

 Clayton, no. 621. This is cited by Linnaeus under Andropogon riutans, the last 

 word of the diagnosis being changed to flexuosis, as globosis is an obvious error. He 



a There are two sheets marked with this number. The first is Andropogon glomeratus 

 (Walt.) B. S. P. It is referred to by Gronovius (page 132) under "Andrapogon pedun- 

 culis," etc., Roy. prodr., and again (page 135) under "Lagurus spicis oblongis" etc., 

 Linn. Hort. Cliff., the Clayton diagnosis being the same in the two cases. (Lagans 

 spicis inter folia brevia ad culmi summitatem dense fasciculatim congestis. Clayton, 606 "). 

 The second is Panicum virgatum L. referred to by Gronovius (p. 133) under "Pani- 

 cum paniculatum glumis acutis," with the Clayton diagnosis, "Gramen miliaceum 

 altissimum," etc. In the second edition of the Flora Virginica Gronovius disposes of 

 the two specimens in the same way, except that he omits the citation of the page 

 under "Andrapogon pedunculis,'* etc. 



