'™^3ffAU'^ ' 



365 



iclefi. Two lower glnmos empty, eomewbat unequal, shorter than the spikelet, 

 narrowly lanceolate, purplish, keeled, awnless. Floral glnmes somewhat larger, 

 narrowly lanceolate, compressed, entire or 2-toothed at apex, awned, 3-nerved; 

 tlio lateral nerves near the margin, and with the keel silky-ciliate below the 

 muldle. Kachilla pilose. — Perennial grasses with large panicles. Awns from 

 the apex of the Uoral glume, straight, scabtons, M. Pournier adds; "stamini- 

 bus 3, lilainentis brevissimis, antheris longis, caryopsi libera, toto in dorso 

 sulcata, api<e bilobulata, macula liilari elliptico-ovali, stigmatibns sessihbus 

 plnmosis." [Mex. PI. Cram. 103 (1886).] 



Differs from Triodia iu the keeled, not rounded, floral glumes, in the fewer and 

 loss imbricato florets, and in the absence of the lateral teeth. 



7V/(7(«;*(.v Be;tion Xeuroblipharum Griseb. in PL Lorentz. p. 211. 



T(i b'i compared with Trichoneura Andersson, which is referred by Bentham 

 and Hooker to Triodia. 



C ui II i a poJt/fiamnT onrn. Mex. PI. Gram. 103 (1880). Culms rather slender, 2 to 

 3 feet high, rathtsr leafy : leaves acuminated, to 10 inches long, 4 to G lines wide, 

 smooth above, somewhat scabrous below : panicles 8 to 12 inches long, the 10 to 

 l.T l)r;uu:hes single or rarely the lower in twos, 5 to 6 inches long, divergent, 

 flowering uniformiy nearly to the base with 10 to 15 spikelets: spikelets 2- to 3- 

 flowered, appfessed; empty glumes narrow, obtusish, the lower 2 and the upper 

 nearly 3 lines long; floral glumes 3 to 4 lines long, gradually attenuated into a 

 straight awn as long as itself or longer; p;ilet nearly as long as its glume, acute, 

 sparingly ciliate; grain oblong-linear, nearly two lines long, nearly cylindrical, 

 with narrow furrow from base to apex, — Mauzanillo, December 1 to 31, 1890. 

 No. 1087. 



I have an unpublished drawing of this plant from Paris by which it is easily 

 recognized. M. Pournier enumerates the following localities and numbers: 

 Vera Cruz, Gouin No. 71) ; Acapulco, Thiebaut No. 1042; San Augustin, Liobmann 

 Nos. .501, 505; without locality, Karwiuski No. 1000. Probably the reference to 

 Florida, Karw. is an error. The following two species belong to the same 

 genus : — 



G. latifolia Vasey; Tricuspis ( Neurohlepharnm) laiifolia Griseb. PI. Ijorentz. 

 211. Obtained from Cordoba, Argentine Republic, also No. 928 Moroug's S. 

 American c()llection. 



G. mexlcana Yasey; Leptochloa (? ) mexicana Scribn. Proc. Phila. Acad. 1891. 

 302 (1891). This species is larger and more robust than either of the others, the 

 culm almost reed-like, the leaves 8 to 10 lines wide, the panicle 1 foot bmg, tho 

 liranches 7 or 8 inches long, with the lower (me-fourth or one-third part naked, 

 the spikelets 3- to 4-flowered, 4 to 6 lines long, with -the awns one-third or one- 

 half as hmg as the floral glumes. 



No. 32.52, cDllectiou C. G. Pringle, San Luis Potosi, Mexico. 



Perhaps this is the G.polygama major, Fouru. Mox, PI. Gram, 103(1886). Vera 

 Cruz, (joiiin No. 77. 

 Jouvea stramiuea Fonrn. Bull. Soc, Roy. Bot. Belg. xv. 475 (1876) ; liachidospermum 

 mexicaiiitm Vasey, Bot. Gaz. xv. 110 (1890). Mauzanillo, March 2 to 18, 1891. 

 No. 1384. 



FILICES.' 



Adiantum conciniium H. B. K. in Willd. Sp. PI. v. 451 (1810). Found associated 

 with No. 1126. Coliiiia, Jiinuary 9 to February 6, 1891. No. 1127. 



Aspidium patens rtwartz in Schrader's .(ournal ii. 34 (1801). Two or three plants 

 of this were gathered with No. 1129. Colima, .January 9 to February 6, 1891. 

 No. 1129a. 



'The ferns and fern allies wer^ determined by Prof. Daniel C. Eaton, of Yale 



College, who has also contributed crjtici^^l notes on some of the species, 



