HITCHCOCK AND CHASE—GRASSES OF THE WEST INDIES. 399 
Known only from the type collection, Wright 3810 from Cuba, the particular 
locality unknown, and from Ledén 4446, collected at San Diego de los Baiios, 
Cuba. 
%. Arthrostylidium pubescens Rupr. Mém. Acad. St. Pétersb. VI. Sci. Nat. 37: 
119. 1839. 
Arundinaria pubescens Hack. Oesterr. Bot. Zeitschr. 53: 69. 1903. 
Culm slender, roughish, the leafy sterile branches 8 to 10 cm. long, rather 
rigid, divergent, in remote fascicles, the rough leaves 8 to 15 cm. long, 6 to 10 
mm. wide; racemes in dense fascicles, the spikelets appressed to the stiff axis. 
Mountain tops, Trinidad, whence originally described, and Venezuela. 
8. Arthrostylidium haitiense (Pilger). 
Arundinaria haitiensis Pilger in Urban, Symb., Antill. 5: 288, 1907. 
Described as climbing 2 to 3 meters high, the young internodes scabrous; 
branches numerous, about 20 cm. long, in distant fascicles; blades 5 to 7 cm. 
long, about 6 mm. wide, with a petiole about 2 mm. long; spikelets narrow, 
closely appressed to the axis, few in short racemes terminating the branches. 
Shady ravines, Haiti. Known only from the type collection, Buch 929, Monte 
Furey, near Port au Prince. 
9. Arthrostylidium multispicatum Pilger in Urban, Symb. Antill. 2: 341. 1901. 
Arundinaria multispicata Hack. Oesterr. Bot. Zeitschr. 53: 69. 1903. 
Climbing high, the slender growing ends of the culms and branches beset with 
very short retrorse prickles, these ends, often 4 meters long, swinging in the 
breeze like whip lashes until a support is found, the radiating short sharp 
scale-covered branch buds then developing, these long grappling branches freely 
produced, forming a dense tangled mass; prickles deciduous, the old culms 
smooth; sterile branchlets whorled, 15 to 30 cm. long, the spreading blades 
6 to 8 cm. long, 10 to 12 mm. wide (on vigorous shoots sometimes larger), the 
floriferous branches rather shorter, bearing 1 to 3 leaves and slender terminal 
and axillary racemes, the spikelets appressed to the straight axis. 
Wooded mountain slopes, Cuba (Yayabo River, Santa Clara, and Santiago) 
and Porto Rico (Maricao, Adjuntas, Jayuya). Originally described from Porto 
Rico, two specimens being mentioned, Sintenis 209 from Maricao and Sintenis 
4016 [41067] from Adjuntas. 
10. Arthrostylidium excelsum Griseb. Fl. Brit. W. Ind. 529. 1864. 
Arundinaria excelsa Hack. Oesterr. Bot. Zeitschr. 53: 69. 1903. . 
High-climbing ; branchlets whorled, 20 to 50 cm. long, the blades commonly 
§ to 12 cm. long, 12 to 15 mm. wide; racemes terminal and axillary, the axis 
strongly zigzag, the spikelets divergent. 
Hills, Dominica, Guadeloupe, Trinidad (whence originally described), and 
Tobago. 
11. Arthrostylidium cubense Rupr. Mém, Acad. St. Pétersb. VI. Sci. Nat. 3}: 
118. pl. 4. f. 18. 1839. 
Arundinaria cubensis Hack. Oesterr. Bot. Zeitschr. 53: 69. 1903. 
Culms slender; blades of primary branches 10 to 15 cm. long, 8 to 10 mm. 
wide, those of the ultimate flowering branchlets elongate, linear, 38 to 4 mm. 
wide; flowering branches very slender, 20 to 30 cm. long, naked or with one or 
two narrow blades at base, bearing a few distant appressed spikelets toward 
their ends. 
Pendent on cliffs, central and western Cuba, the type specimen collected by 
Sagra. 
47877°—_17——10 
