300 BOTANICAL GAZETTE [APRIL 
In general, the blade should project only far enough to allow the 
paraffin block to clear. Naturally, the blade might project a little 
farther in case of thin delicate sections than with thick hard ones, but 
a little experience will accustom one to the use of such a knife, and the 
luxury of having at all times a fresh keen cutting edge will be appre- 
ciated by all who have known the drudgery demanded by the microtome 
knives in general use.—CuHarLes J. CHAMBERLAIN, The University of 
Chicago. 
ADDITIONS TO THE GRASSES OF CUBA 
Since the publication of the Catalogue of the grasses of Cuba, several 
additional species of grasses have been contributed to the N ational 
Herbarium by Brother LEON of the Colegio de la Salle, Habana. The 
following is a list of these: 
MANISuRIS EXALTATA (L. f.) Kuntze, Rev. Gen. Pl. 22779. 1891. 
Stegosia exaltata Nash, N. Amer. Fl. 17:84. 1909. F 
is species is retained provisionally in Manisuris until the genera 0 
Andropogoneae are more carefully examined. 
Sancti Spiritus, Leén 847. 
ANDROPOGON squarrosus L. f. Suppl. 433. 1781. 
Habana, Leén 1581. Introduced. 
ANDROPOGON caricosus L. Sp. Pl. ed. 2.221480. 1763. 
Guanabacoa, Leén 2013. Introduced. 
Sorghastrum agrostoides (Speg.). 
Andropogon agrostoides Speg. Pl. Nov. Nonnul. Amer. Austr. Dec. 2:27- 
83. 
Sancti Spiritus, Leén 895. 
PASPALUM BLEPHAROPHYLLUM Nash, in Small Fl. Southeast. US. 
1903. 
Marianao, Leén, 770. 
Paspatum HELtert Nash, Bull. Torrey Club 302376. 1903- 
Santiago de Cuba, Leén gsr. ; 
PASPALUM MOoNosTACHYUM (H. B. K.) Vasey, in Chapm. Fi. South. 
US. ed. 2. 665. 1880. f 
Zaza de Tunas, Santa Clara, Leén 947. The spikelets are smaller than 
the typical form. 
’ Hrtcucock, A. S., Contr. Nat. Herb. 12: 183-258. 1909. 
