GRAMINEA. 5717 
1. Zeugites galeottiana, Hemsl. 
Krombholzia mexicana, Rupr. in Bull. Acad. Brux. ix. (reprint, p. 21); Fourn, Mex. Pl. Enum., 
Gram. p. 122. . 
Souto Mexico, on the banks of the river which waters the town of Sola in Oaxaca 
(Galeotti, 5751). 
2. Zeugites hartwegi, Fourn. Mex. Pl. Enum., Gram. p. 121. 
Despretzia mexicana, Benth. Pl. Hartw. p. 82, non Kunth. 
Guatemata, Santa Maria (Hartweg, 569). Hb. Kew. 
8. Zeugites latifolia, Hemsl. 
Krombhoizia latifolia, Fourn. Mex. Pl. Enum., Gram. p. 122. 
Sourn Mexico, near Talea, Oaxaca (Liebmann), Dolores (Liebmann). Hb. Kew, 
The plant in the Kew herbarium, which we have referred to this species, is not from 
the locality recorded by Fournier; but it agrees quite well with the description. 
4, Zeugites mexicana, Trin. ex Fourn. Mex. Pl. Enum., Gram. p. 121. 
Despretzia mexicana, Kunth, Revis. Gram. ii. p. 485, t. 157, et Enum. Pl. i. p. 40., 
Zeugites americana, Rupr. in Bull. Acad. Brux. ix. (reprint, p. 21), non Willd. 
Panicum schiederi, Spreng. ex Steud. Gram. p. 411. 
South Mexico, Cordillera of Oaxaca at 3000 feet (Galeotti, 5695), Real del Monte 
(Coulter, 1694), Orizaba (Miller, 2020; Schaffner), without locality (Schiede & Deppe). 
Hb. Kew. 
5. Zeugites munroana, Hemsl., n.sp. (Tab. CII. A. figg. 1-4.) 
Herba perennis, glabra vel glabrescens, ramosa, ramis gracilibus nitidis adscendentibus pedalibus vel 
ultra. Folia longiuscule graciliterque petiolata, ovato-lanceolata, usque ad 2 poll. longa, 
acuta, basi rotundata, conspicue 5-7-nervia, venis transversis nunc conspicuis nunc fere 
obliteratis ; vaginee usque ad basin fisse, obscure ciliolate, ligula brevi rotundata. Panicule 
5-10- rarius usque ad 15-spiculate ; spicule sepissime 5-flore, sed interdum 4-flore interdum 
6-flore ; flores confertiusculi, inferior tantum femineus. Glume exteriores insigniter reticu- 
late, ciliate, inferior 7-nervia, 5-dentata, superior 5-nervia, 3-dentata. Floris feminet gluma 
nervoso-reticulata, apice late rotundata, valde ciliata; palea angustissima, bifida; styli a basi 
liberis ; stigmata elongata, plumosa. Florum masculinorum glume elongate, acuminate, parce 
ciliate. 
GuaTEMALA, Volcan de Agua (Salvin & Godman, 345), ridge above Calderas, Volcan 
de Fuego 8300 feet (Salvin). Hb. Kew. 
Since figuring and describing this, we have again examined the species of Zeugites in 
the Kew herbarium, and we now think that our Z. munroana may be only a variety of 
Z. hartwegi, Fourn. 
EXPLANATION OF TAB. CII. A. Fiee. 1-4. 
Fig. 1, a spikelet ; 2, a male flower; 3, a female flower ; 4, a pistil: all very much enlarged. 
BIOL. CENTR.-AMER., Bot. Vol. ITI.. December 1885. 4¢@ 
