130 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Aira panicula oblonga, floribus muticis, hermaphrodito masculoque, caly- 

 cibus triphyllis. Gron. Fl. Virg. 2: 135. 1743. 

 Clayton, no. 590. This is cited by Linnaeus under Holcus striatus, but he changes 

 the last word of the diagnosis to diphyllis. The specimen is Sactiolepis striata (L.) 

 Nash (Panicum gibbum Ell). 



Aira calycibus trivalvibus trifloris. Gron. Fl. Virg. 2: 136. 1743. 



Clayton, no. 589. This is cited by Linnaeus under Holcus laxus. The specimen is 

 Uniola laxa (L.) B. S. P. ( U. gracilis Michx.). 



Poa panicula laxa erecta stricta, spiculis erectis oblongis. Gron. Fl. Virg. 2: 

 136: 1743. 

 Clayton, no. 581. This is cited by Linnaeus under Poa capillaris. The Clayton 

 number on the sheet is 580, and is so cited in the second edition of Gronovius. The 

 specimen is Eragrostis pectinacea (Michx.) Steud. 



Uniola calycibus diphyllis, spiculis ovato-lanceolatis. Gron. Fl. Virg. 2: 136. 

 1743. 

 Clayton, no. 582. This is cited by Linnaeus under Briza eragrostis. The specimen 

 is Eragrostis megastachya (Koel.) Link. 



Cynosurus spicis quatemis terminatricibus horizontalibus. Roy. prodr. 

 Gron. Fl. Virg. 2: 136. 1743. 

 ( layton, no. 597. Linnaeus cites the Royen diagnosis under Cynosurus aegyptius, but 

 does not ciir Gronovius. The specimen is Elcusine indica (L.) Gaertn. 



Gramen avenaceum locustis aristatis, paniculis forma Echinum referenti- 

 bus. Gron. Fl. Virg. 2: 136. 1743. 



Clayton, no. 570. This is cited by Linnaeus under Elymus hystrix (Sp. PI. 560. 

 L753). 



The specimen is Hystrix hystrix (L.) Millsp. (Asprella hystrix Willd.; Hystrix patula 

 Moench). 



Arundo panicula laxa, calycibus quinquefloi-is. Roy. prodr. Gron. Fl. Virg. 

 2: 137. 1743. 

 Clayton, no. 581. This is cited by Linnaeus under Arundo phragmites. The Clayton 

 number in the second edition of Gronovius is misprinted 481. The specimen is 

 Phragmites phragmites (L.) Karst. (P. communis Trin.). 



Arundo maxima. Ad ripas fluminis Maharin & in Carolina boreali crescit. E 



caudice geniculis perterebratis Angli calamos piscatorios conficiunt. Clayt. 



(imn. Fl. Virg. 2: 137. 1743. 



No Clayton number is given and it is not mentioned in the second edition nor is 



it cited by Linnaeus. It probably refers to the large cane, Arundinaria macrosperma 



Michx. 



Gramen arundinaceum glumarum apicibus dilute purpureis. Gron. Fl. 

 Virg. 2: 137. 1743. 

 Clayton, no. 596. The specimen of this has not been seen, and I am unable to 

 identify it. It does not appear in the second edition of Gronovius. 



Oryza glumis carina hispidis. Gron. Fl. Virg. 2: 153. 1743. 



Clayton, no. 595. This is cited by Linnaeus under Phalaris oryzoides. The Clayton 

 number in the second edition of Gronovius is 395. A specimen without number but 

 bearing this diagnosis is Homalocenchrus oryzoides (L.) Poll. 



Zizania. Gron. Fl. Virg. 2: 189. 1743. 



Clayton, no. 574. This is cited by Linnaeus under Z. aquatica. The specimen is 

 Z. palustris L. 



