﻿2l6 BOTANICAL GAZETTE [march 



straight awn, hence on the above-mentioned basis Andropogon alopecu- 

 roides L. and Erianthns alopecuroides Ell. are not identical. My own 

 opinion is that these, E, saccharoides Michx., and E, coifipactus Nash 



are all forms of the same species. 



The third species described by Linnaeus is A, nutans. The plant 

 in the Linnaean herbarium is what we have generally been calling by 



that name. Two synonyms are given. 



folio 



superiore^ etc., of Gronovius based on Clayton no. 621, which is Stipa 

 avenacea L. .The second synonym is Gramen avenaceum^ etc., Sloan, 

 Jam. 35. Sloan's plants are also deposited in the herbarium of the 

 British Museum. His plant is Andropogon insularis L. 



The fourth species of Andropogon described by Linnaeus, A. 

 alopecuroides^ is founded upon a large panicle in his herbarium and 

 upon Gronovius Virg. p. 133, Clayton no. 601, which is the same. 

 The third synonym is Sloan, Jam. 3. Sloan's plant I take to be a dif- 

 ferent species of Erianthus. 



II. DACTYLIS CYNOSUROIDES L. 



Dactvlis cynosuroibes L. Spec. PL 71. 



Dactylis spicis sparsis secundis scabris numerosis. 



Gramen maritimum, spica crassa dactyloide terminali, odore rancido, 

 culmo albo. Gron. Virg. 135. 



jS. Dactylis spicis alteriis secundis incisis erectis approximatis, calycibus 

 unifloris subulatis. Gron. Virg. 134. 



Habitat in Virginia, Canada, Lusitania. 



Then follows a more extended description. 



It is quite probable that Linnaeus may have included the two 

 species that are nowreferred to ^ar//>/a cynosuroides^xWA, and S, poly- 

 stachya Willd. in the above, as he gives Canada as one of the type 

 localities; while Merrill in his recent monograph of Spartina limits 

 the range of the former from Canada to New Jersey and the latter 

 from New Jersey to Florida. The two species were first distinguished 

 by :Michaux in his Flora as Trachynotia cynosiiroides and T. polysiachya, 

 Michaux applied the specific names as have later authors under Spartina. 



However, the specimen of Dactylis cynosuroides in the Linnaean 

 Herbarium is Spartina poly stachya Willd. (or Elliott, as Willdenow does 

 not actually make the combination in his Enumeratio, but refers 

 Trachynotia polystachya Michx. to Spartina). The specimen in the 

 Gronovius Herbarium {''Gramen maritimum, etc.") is also 5. poly- 

 stachya Willd. Linnaeus's description might apply to either species, 



