340 
transformed into sac-like inflated bodies, closely resembling the 
lip, but differing from it in being smaller with wider and rounder 
openings, and in not having the edges rolled in. The coloring of 
these side petals was like that of the lip, pinkish with lines of deep 
red. The tip of the lip was pushed in upon itself until it was half 
inverted, partly filling the cavity of the lip. The lip was also flat- 
tened and broadened more than usual. The whole plant was 
rather small, but not unusually so. The other floral organs were 
normal. | Cyares A. Davis. 
ALMA CoLLEGE, ALMA, MICH., July, 1893. 
' 
Index to Recent Literature Relating to American Botany. 
Azolla filiculoides—On the Development of. Douglas H.. Camp- 
bell (Ann. Bot. vii. 155-187; three plates). 
Sisanical Notes from Taxis en VL _IX. EN. Plank (Gard.. and 
For. vi. pp. 272; 283). 
Mention is made of Opuntia Engelmanni, O. leptocaulis, Jw 
glans rupestris, Leucophyllum Texanum, Condalia obovata, Gail- 
lardia pulchella, Rubus trivialis and others. 
Alluding to cypress-trees, the author suggests that the so- 
called cypress-knees are probably only abortive attempts of the 
species to reproduce itself from its roots. At Lake Charles, La., 
the knees of some small cypress-trees were observed bearing 
twigs and leaves. 
California Plants—Notes on: IV. S. B. Parish (Zoé, iii. 352-354): 
Remarks on Calochortus venustus and Lilea subulata. ee 
Caryopsis——On the Development of the. Rodney H. True (Bot. 
Gaz. xviii. 212 ; with three plates). : 
Comarum palustre. (Meehan’s Month. iii. 97). 
With illustration of the Marsh Cinquefoil. . 
Contribution to the Biology of the Organism causing Leguminous — 
Tubercles. Geo. F. Atkinson (Bot. Gaz. xviii. 226, 257). ae 
Corrections and Additions to Moses Craig’s Catalogue of the. Uncult- 
vated Flowering Plants Growing on the Ohio State University 
Grounds. WV. A. Kellermann and W. C. Werner (Bull. No. 25 
Ohio oe Ex. Sta. 1893). ) oo 
