Publications received in Exchano-r /« r«h, 

 ERRATA. 



CORRECTIONS AND ADDITIONS. 



Page 24, line 33. Mr. Baker gives 150-180 as the number of leaves of Y. re- 

 cti rvifolia. 

 " 26, " 5. They are always thus tipped, much more sparingly in some 

 species than in others; hair usually i-celled, sometimes 

 articulated. 

 " 27, " 20. The ovules of Y. Treculiana are among the thickest of 



any. 

 " 2S, " 11. Read "does" for "seems to." 



" 29, " S. I have found the pods of Y. aloifolia, Treculiana, baccata, 

 and brevifolia, perforated and the seeds eaten by the 

 larvae. 

 Read "2.0" for "2.5." 



They reach nearly to the same northern latitude. 

 Add to "floribus," "pendulis." 



Leaves of young plants nearly flat, whence discrepancies 

 in descriptions. 



" 46, " 2. Dr. Wislizenus ascribes them the same height. 

 " "26. They rather belong to or near Y. angust (folia : only the 



fruit will decide. 

 " 4S> " 33- Read "subnudis" for "nudis." 

 " 81, " 14. Strike out the " a." 

 " 121, " 3 from bottom. For "w" read £, . 



Page xliii, line 10, for "bunches" read "branches." 

 " liv, " 6, for " cynthta" read " cynthia." 



Yucca sJ>inosa, HBK. n. gen. I. 289, is made up of the flower of a Yucca 

 and the leaves of Dasylirion acotriche. (See p. 24, note.) 



Yucca acaulis, HBK. ib., is a Fourcroya. 



Yucca? farviflora, Torr. Bot. Mex. Bound. 221, constitutes the genus 

 Hesfieraloe, Engelm. King Bot., 40th par. 497. 



. -,- ,-• - .~^.,-» eiuin, 1070-72 ; Esseiva ad Juve- 

 nem Satira, 1872; C. Seemans Bathmensche Munzschilderingen, Am- 

 sterdam, 1872. 



Harlem— La Societe Hollandaise a Harlem : Archives, T. vi. 4-5 ; T. vii 

 1-3, 1872. 



Utrecht— -K. Nederlandisch Meteorologisch Institut: Jaarbock, 1871. 



Leyden — The Astronomical Observatory at Leyden : Annalen der Stern- 

 warte in Leiden, von Dr. F. Kaiser, Director, iii. Band, Haag, 1S72. 



