HITCHCOCK—MEXICAN GRASSES. 321 
HERBARIUM SPECIMENS FROM MEXxIco: 
Pursia: Tezuitlin, Orcutt 3953. 
Veracruz: Orizaba, in old field, hilltop, Hitchcock 6388; Botteri 687. Mirador, 
Iiebmann 714. Jalapa, railway cut through jungle, Hitchcock 6640; clay cut 
along railway, Hitchcock 6615. 
9. Agrostis setifolia Fourn. Mex. Pl. 2: 97. 1886. 
Type locality, ‘“‘In monte Orizabensi,’’ the type specimen collected by Liebmann 
(no. 712). 
RANGE: Southern Mexico. 
HERBARIUM SPECIMENS: 
Pursia: Mount Orizaba, sandy soil, subalpine region, Purpus 3013. 
Oaxaca: Sierra de San Felipe, Pringle 4895, Smith 922. 
10. Agrostis schaffneri Fourn. Mex. Pl. 2: 94. 1886. 
Type locality, ‘‘Tacubaya,” Federal District, the type specimen collected by 
Schaffner. 
RanGE: Southern Mexico. 
HERBARIUM SPECIMENS: 
MExico: Popocatepetl, open place, Hitchcock 5990; bank of deep cut, Hitchcock 
5978. Amecameca, dry hills, Purpus 1646. Tres Marfas, Orcutt 4441. 
PuEBLA: Mount Orizaba, open woods, Hitchcock 6262. 
74, CALAMAGROSTIS Adans. Fam. Pl. 2: 31, 530. 1763. 
KEY TO THE SPECIES. 
Blades flat; panicle rather compact; rhizomes present, the culms 
not densely tufted................22-22-02-22-22-20222-2--- 1. C. pringlet. 
Blades involute; culms densely tufted. 
Lemma villous all over...........- 22-22-2022 2 ceee cece eee cess 2. C. schiedeana, 
Lemma not villous or only at base; awn present or absent; 
pedicel one-third to three-fourths as long as lemma...... 3. C. tolucensis. 
1. Calamagrostis pringlei (Scribn.) Beal, Grasses N. Amer. 2: 345. 1896. 
Deyeuxia pringle: Scribn.; Beal, Grasses N. Amer. 2: 345. 1896, as synonym. 
Type locality, ‘‘Mexico,’’ the type specimen collected in the Sierra Madre, Chi- 
huahua, 2,700 meters altitude, by Pringle (no. 1422). 
RANGE: Known only from the type collection. 
2. Calamagrostis schiedeana (Rupr.) Steud.; Fourn. Mex. Pl. 2: 105. 1886. 
Deyeuxia schiedeana Rupr.; Fourn. Mex. Pl. 2: 105. 1886. 
Type locality, ‘‘prope fines nivis aeternae in monte Orizabensi,’’ the type speci- 
ren collected by Schiede (no. 917). 
Rance: Known only from the region of Mount Orizaba. 
HERBARIUM SPECIMENS: 
PursiaA: Mount Orizaba, sandy plains, Seaton 227; subalpine in sandy soil, 
Purpus 3016; rocky slopes, alpine region, Purpus 3019; Liebmann 721; 
Pringle 9593; bald hills, common, Hitchcock 6253; Rose & Hay 5775; Ross 
1261, 1274. 
3. Calamagrostis tolucensis (H. B. K.) Trin. in Steud. Nom. Bot. ed. 2. 1: 251. 
1840. 
Deyeuxia tolucensis H.B.K. Nov. Gen. & Sp. 1: 143. 1816. 
Type locality, ‘‘in alta planitie Mexicana juxta Toluca.” 
Rance: Mountains of southern Mexico and Guatemala. 
