132 



Third and fourth scales not awned, 



Kntirr, culms i-2 tall. 



Krose-truncate, culms 6' tall or less. 

 Third and fourth scales awned. 



GRAMINEAE. 



1. S. odorata. 



2. .S. pauciflora. 



3. 5. alpina. 



i. Savastana odorata (L,.) Scribn. Holy 

 Grass. Seneca Grass. (Fig. 294.) 



Holcus odoratns L,. Sp. PI. 1048. 175.3. 

 Hierochloa borealis R. & S. Syst. 2 : 513. 1817. 

 Savastana odorata Scribn. Mem. Torr. Club, 5: 34. 



Glabrous, culms i-2 tall, erect, simple, smooth. 

 Sheaths smooth ; ligule i // -2 // long ; lower leave 

 elongated, 4 / -8 / long, i // ~3 // wide, scabrous, the upper 

 ones >'-2' long ; panicle 2'-4 x long, its branches i'- 

 2' long, usually spreading, naked below; spikelets 

 yellowish-brown and purple, 2"-^" long; first and 

 second scales about equal, glabrous; third and fourth 

 villous and strongly ciliate, entire, awn-pointed, the 

 fifth smaller than the others, villous at the apex. 



Newfoundland to Alaska, south to New Jersey, Wiscon- 

 sin and Colorado. Also in northern Europe and Asia. 

 June-July. This and other sweet-scented grasses are 

 strewn before the churches in northern Europe, whence 

 the name Holy Grass. Also known as Vanilla Grass. 



2. Savastana pauciflora (R. Br.) Scribn. 



Arctic Holy Grass. (Fig. 295.) 



Hierochloa pauciflora R. Br. App. Parry's Voy. 293. 1824. 

 Saras/ana pauciflora Scribn. Mem. Torr. Bot. Club, 5: 353. 

 1894- 



Glabrous, culms 6' high or less, erect, simple, smooth. 

 Sheaths mostly at the base of the culm, overlapping ; 

 ligule about Y^" long; leaves smooth, the basal ones 

 i / -2 / long, y-i" wide, involute at least when dry; culm 

 leaves y t f long or less, i // wide, flat; panicle less than i x 

 long, contracted; spikelets few, i#"-2" long; first and 

 second scales I j^ // -2 // long, smooth and glabrous; third 

 and fourth shorter, scabrous, erose-truncate, the fifth 

 shorter than the others, obtuse, villous at the apex. 



Arctic America. Summer. 



3. Savastana alpina (Sw.) Scribn. Alpine Holy Grass. (Fig. 296.) 



Holcus alpinus Sw.; Willd. Sp. PI. 4: 937. 1806. 

 Hierochloa alpina R. & S. Syst. 2: 515. 1817. 

 Savastana alpina Scribn. Mem. Torr. Club, 5: 34. 1^94. 



Glabrous and smooth, culms &-&' tall, erect, 

 simple. Sheaths shorter than the internodes ; 

 ligule less than \" long ; lower leaves elongated, 

 3 / -6 / long, about i" wide, the upper much shorter, 

 y-i'-z' long, \"--2." wide ; panicle %'-i.% f long, 

 contracted, branches short, erect or ascending; oc- 

 casionally the panicle is larger with longer and 

 spreading branches ; spikelets 2^ // -3X // l n g> 

 crowded; first and second scales glabrous, 2j^ // - 

 3X /X long ! third and fourth shorter, scabrous, cili- 

 ate on the margins, the former bearing an awn 

 about i // loug, the latter with a more or less bent awn 

 about 3" long ; fifth scale shorter than the others, 

 acute, usually awn-pointed, villous at the apex. 



Greenland to Alaska, south to the high mountains of 

 New England and New York. Also in northern Europe 

 and Asia. July-Aug. 



