1916] Fernald, — Trisetum spicatum in eastern America 195 



1. c. and subsequent authors, in part. — Virginia: Norfolk, Dana. 

 Florida: low fertile ground near Jacksonville, June 18, 1898, A. II. 

 Curtiss, no. 6420 (type, in Gray Herb.); moist places, near Eustis, 

 May, 1894, G. V. Nash, no. 838. Texas : (" floribus albis ") Houston, 

 June 1843, Lindheimer. A specimen from dry hillsides and woods, 

 Alexandria, La., May 31, 1899, C. R. Ball, no. 514, is intermediate 

 between this variety and the typical form. 



THE REPRESENTATIVES OF TRISETUM SPICATUM IN 

 EASTERN AMERICA. 



M. L. Fernald. 



Trisetum spicatum (L.) Richter, var. pilosiglume, n. var., culmis 

 densissime tomentosis 1.5-5 dm. altis; foliis plus minusve pilosis, 

 vaginibus tomentosis, pilis refiexis; paniculis plerumque argenteo- 

 viridibus rare subviolaceis deinde albido-brunneis 2-7 cm. longis valde 

 interruptis; spiculis 2-3-floris; glumis pilosis, inferiore lanceolato- 

 attenuata 3.5-4 mm. longa, superiore ovato-lanceolata subaristata 

 3.5-4.7 mm. longa; lemmatibus 4.6-6.3 mm. longis lanceolatis apice 

 laciniis setiformibus valde bipartitis; palea lemmate paullo breviori- 

 bus apice laciniis setiformibus valde bipartita. 



Culms densely tomentose, 1.5-5 dm. high: leaves more or less 

 pilose: the sheaths tomentose with reflexed hairs: panicles mostly 

 silvery-green, rarely somewhat violaceous, finally whitish-brown, 2-7 

 cm. long, obviously interrupted: spikelets 2-3-flowered : glumes 

 pilose; the lower lance-attenuate, 3.5^4 mm. long; the upper ovate- 

 lanceolate, subaristate, 3.5-4.7 mm. long: lemmas 4.6-6.3 mm. long, 

 lanceolate, obviously 2-cleft at apex into setiform segments: palea 

 a little shorter than the lemma, its apex 2-parted like the lemma. — 

 Labrador and Newfoundland to northern New England and Ontario. 

 Labrador: Rama, August 20-24, 1897, J. D. Sornborger, no. 240, in 

 part; Okkak or Hebron, 1853, Moravian Bros.; Hopedale, August 

 4-6, 1897, Sornborger, no. 241; limestone and calcareous sandstone 

 terraces, Blanc Sablon, August 1, 1910, Fernald & Wicgand, no. 2,509. 

 Newfoundland: island off Pike's Arm, July 19, 1911, Fernald, Wie- 

 gand & Bartram, no. 4,593 (type in Gray Herb.); rocks, Black Island, 

 July 20, 1911, Fernald, Jl'iegand & Bartram, no. 4,594; dry sea-cliffs, 

 Tilt Cove, August 20, 1911, Fernald, Wiegand & Darlington, no. 2,f>(iS; 

 dry limestone barrens, upper slopes and tablelands, alt. 200-300 m., 



