STANDLEY TREES AND SHRUBS OF MEXICO. 69 



Panicum compactum Swartz, Adnot. Bot. 14. 1829. Not P. compactum Kit. 

 1814. 



Panicum liehmannianum Fourn. Mex. PI. 2: 33. 1886. 



Climbing over bushes, Sonora to Veracruz and soutliward ; type from the 

 Volcan Jorullo. Mexico and the West Indies to Venezuela. 



More robust than any other species, freely branching, with numerous leafy 

 dorsiventral shoots with broad blades, these velvety or glabrous beneath, 

 glabrous or scabrous above, the sheaths glabrous or nearly so, the scarcely ex- 

 serted, oblong or club-shaped panicles usually compactly flowered. 



5. BAMBOS Retz. Obs. Bot. 5: 24. 1789. 

 Robust arboreous grasses with culms several centimeters in diameter and 

 rising to the height of 10 to 20 meters. 



Branches spiny 1. B. aculeata. 



Branches unarmed • 2. B. vulgaris. 



1. Bambos aculeata (Rupr.) Hitchc. Contr. U. S. Nat. Herb. 17: 387. 1913. 

 Guadua aculeata Rupr.; Fourn. Mex. PI. 2: 130. 1886. 



Veracruz, the type from Colipa. 



2. Bambos vulgaris Schrad. ; Wendl. Coll. PI. 2: 26. pi. .'il. 1810. 

 Commonly cultivated in tropical America ; native of the Old World. 

 Arborescent, freely branching; flowering branches fascicled, elongate, leafless, 



the sessile spikelets radiate in clusters. " Caiia brava " (Cuba). 

 The common bamboo of cultivation. 



6. CHUSQUEA Kunth, Syn. PI. Aequin. 1: 254. 1822. 



Branchlets pubescent; base of sheath tumid 1. C. nelsoni. 



Branchlets glabrous; base of sheath not tumid 2. C. bilim^eki. 



1. Chusquea nelsoni Scribn. & Smith, U. S. Dept. Agr. Div. Agrost. Bull. 4: 16. 



1897. 

 Only known from the type, which was collected between Chilapa and Tuxtla, 

 Guerrero. 



2. Chusquea bilimeki ^ Fourn. Mex. PL 2: 132. 1886. 



Only known from the type locality, in the Valley of Mexico. 

 Described as having a culm a centimeter in diameter. 



7. ARUNDINARIA Michx. Fl. Bor. Amer. 1 : 73. 1803. 



Blades 2 mm. wide; lemmas 1 to 1.5 mm. wide '. 1. A. acuminata. 



Blades 5 to 8 mm. wide; lemmas 2 mm. wide 2. A. longifolia. 



1. Arundinaria acuminata Munro, Trans. Linn. Soe. Bot. 26: 25. 1868. 

 Veracruz, the type locality. 



Panicles diffuse, the spikelets narrow, acuminate, the lemmas awned. 



2. Arundinaria longifolia Fourn. Mex. PI. 2: 131. 1886. 



Durango, Tepic, San Luis PotosI, Veracruz, and Oaxaca ; type from Jicalte- 

 pec, Veracruz. 



Panicles less diffuse than in the preceding, the spikelets wider ; blades long 

 and narrow, 15 to 20 cm. long, 5 to 8 mm. wide ; culms as much as 4 cm. thick. 



^ Named for Bilimek, who was chief gardener of the Emperor Maximilian. 

 He made a small collection of plants, some of which are in the U. S. National 

 Herbarium. 



