GRAMINEAE (GRASS FAMILY) 



121 



19. PHALARIS L. Canary Grass 



Spikelets l-flowered, laterally flattened ; glumes equal, boat-shaped, much 

 exceeding the florets ; sterile lemmas small and narrow, appearing like hairy 

 scales attached to the fertile floret ; fertile lemma indurated and shining in fruit, 

 inclosing a faintly 2-nerved palea. — Annuals or perennials, with flat leaves and 

 dense spike-like panicles. (The ancient Greek name, (paXapis, alluding presuma- 

 bly to the crest-like inflorescence.) 



§ 1. EUPHAlARIS Godron. Panicle very dense,, spike-like; glumes 



wing-keeled. 



1. P. CAyARiENSis L. (Canary Grass.) Annual, 3-8 dm. high 

 oval, 2-:3 cm. long ; spikelets broadly obovate, 5-6 mm. long, imbricated 

 Tfhite icith green veins, the keel entire ; fertile lemma browTn. — 

 Waste places and roadsides. (Adv. from Eu.) 



P. MINOR Retz. has been collected at St. John, N. B. {Fowler) 

 and on ballast at Camden, N. J. {Pollard). The spikes are 

 ublong and the glumes are narrowed at the pointed apex, the 

 exposed portion of the keel being somexchat toothed. 



§ 2. DfGR APHIS (Trin.) Endl. Panicle branched, the clusters 

 open in anthesis ; glumes not winged on the back. 



2. P. arundinacea L. (Reed C.) Perennial, 6-15 dm. 

 high ; leaves flat, 6-10 mm. wide ; panicle 6-15 dm. long ; 

 spikelets lanceolate, 5 ram. long, pale ; sterile lemmas reduced 

 to minute hairy scales. — Wet grounds ; common, especially 

 north w. June, July. Fig. 76. Yar. pfcTA L., the leaves 

 striped with white, is the familiar Ribbon Grass of the garden. 

 (Eurasia.) 



panicle 

 glumes 



76. P. arundinacea 

 x2. 



Spikelet ; same 

 with glumes sep- 

 arated. 



20. ANTHOXANTHUM L. Sweet Yernal Grass 



Spikelets l-flowered ; glumes very unequal ; sterile lemmas 2-lobed, hairy, 

 dorsally awned, longer than the fertile floret and falling with it ; fertile lemma 



truncate, awnless, inclosing a faintly 1-nerved palea and per- 

 fect flower ; stamens 2. — Aromatic plants with flat leaves 

 and narrow spike-like panicles. (Name compounded of 

 &v6os, flower, and ^av66s, yellow).) 



1. A. odoratum L. Perennial; culms slender, erect, 

 2-6 dm. high; leaves rough above; panicles 3-8 cm. long; 

 spikelets browni>ih green., 8-10 ram. long, spreading at flower- 

 ing time; glumes spa.rsely pilose ; first sterile lemma short- 

 awned below the apex, second bearing a strong bent scarcely 

 exserted awn near its base. — Meadows, pastures, and waste 

 places, throughout, especially easlw. May-July. — Sweet- 

 scented. (Nat. from Eu.) Fig. 77. 



2. A. Plelii Lecoq & Lamotte. Smaller, annual ; pani- 

 cles 1-4 cm. long; spikelets whitish green, b-1 mm. long; 

 the glabrous glumes narrower than in no. I ; the long-exserted 



Spikelet; same with ow?« blackish at base. — Dry fields and waste places, N. E. 

 glumes separated to Gilt, and Pa. ; sometimes cultivated westw. and southw, 

 xii^. (Nat. from Eu.) 



77. A. odoratum. 

 Inflorescence x y^ 



21. HIEROCHLOE [Gmel.] R. Br. Holy Grass 



Spikelets 3-flowered, the terminal flower perfect, the others staminate or 

 empty ; glumes subequal. about the length of the spikelet, boat-shaped, shining ; 

 stt-rile lemmas nearly as long as the glumes, boat-shaped, indurated and hairy, 

 each inclosing a 'J-nerN ed hyaline palea and a flower of '.) stamens ; fertile lemma 

 similar but smaller, inclosing a 1-nerved palea and perfect flower w ith 2 stamens. 



