C ADDENDA TO THE 



smaller, the glumes very acute, and the lower palea cuspidate. Borders of 

 Maine (on the St. John's River, G. L. Goodale), and northwestward. 



P. 547. 



l a . Calaniagrostas Laiigscltirffii, Trin. Resembles no. 1, but the 



spikclets are larger, the oblong-lanceolate taper-pointed glumes 2^" to 3" long, 

 and more strigose- scabrous ; the awn stouter. This and C. Canadensis are the 

 only species in this country which have the panicle loose and open after flowering. 

 White Mountains of New Hampshire (IV. Boott) and northward. (Eu.) 



l b . C. Stricta, Trin. Panicle glomerate and lobed, strict, its branches 

 erect or appressed after flowering; glumes l|"-2" long, ovate-oblong, not 

 acuminate ; hairs scarcely or little shorter than the flower, and as long as those 

 of the rudiment ; awn straight, from the middle of the thin palea or lower, and 

 barely exceeding it; leaves narrow, soon involute. Ledges at Willoughby 

 Lake, Vermont ( W. Boott), and northward. (Eu). 



3. C. NuttalliaiKl, Steud. This name must take the place of C. coarc- 

 tata, Jbrr., as there is an older one of the latter name in South America. 



3 a . C. Porteri, Gray, Proceed. Amer. Acad. 6, p. 79. Panicle long and 

 narrow, with the branches appressed ; glumes lanceolate, acute, pale, 2" to 2^" 

 long ; hairs of the flower and of the short rudiment scanty, and both reaching 

 about to the middle of the flower behind the upper palea, but very short or none 

 at the base of the firm-membraceous lower palea, which bears near its base a 

 twisted awn of its own length ; stem 2 -4 high ; -leaves flat, bearing a woolly- 

 bearded ring at the junction with the sheath. Dry woods, Pulpit Rocks and 

 vicinity, Huntingdon Co , Pennsylvania, Prof. T. C. Porter. 



P. 556. 



Grapliepiiorum melicoidos, Beauv., is to replace Dupontia Coo- 

 leyi. See Gray in Ann. Bot. Soc. Canad., and Proceed. Amer. Acad. 5, p. 190. 



P. 565. 



l a . FESTUCA MYtrRUS, L. Panicle narrow and simple, one-sided (2' to 6' 

 long), strict; spikelets about 5-flowered; lower glume setaceous; flowers awl- 

 shaped, rough, long-awnod, the awn longer than the palea; leaves as in no. 2. 

 Annual, 6'- 12' high. Pine-barrens of New Jersey, and Delaware Co., Penn. 

 ( W. M. Canby), and southward. (Nat from Eu.) 



P. 569. 



1. Triticiim repcns, L. : add var. JUNCEUM, Benth. (T. junceum, L.) 

 A marked maritime variety, glaucous, rigid, awnless ; the glumes obtuse ; the 

 leaves involute and shra-p-pointed. Cape Elizabeth, Maine, Prof. Tuckerman. 

 (Nat. from Eu.? ) 



P. 572. 



2. Dantlionia sericea, Nutt. Larger than no. 1 ; culms not tufted ; 

 leaves broader ; glumes three quarters of an inch long ; lower palea densely vil- 

 lous with long silky-white hairs. Pine-barrens of New Jersey, near Philadel- 

 phia (C. E. Smith), and southward. 



