BFESEEACE^. 21 



In the absence of sufficient material Engler leaves the following undetermined or 

 undefined : — Bur sera obovata, Turcz., JElaphrium ariense, H. B. K., Elaphrium copalli- 

 ferum, DC, and Amyris \ tecomaca, DC. 



[i. p. 180.] HEDWIGIA. 



Hedwigia, Swartz ; DC. Monogr. Phanerog. iv. p. 95. 



2*. Hedwigia panamensis, Engler, Bot. Jahrb. i. p. 42 ; DC. Monogr. Phanerog. 

 iv. p. 96. 

 Hedwigia balsamifera, huj. op. i. p. 180, non Swartz. 



Panama, Bio Grande railway-station (S. Hayes, 342). 



i. p. 180. Four lines from top, Rhus potentillcefolia, Turcz., .does not belong 

 here ; it is a true Bhus, and Engler (DC. Monogr. Phanerog. iv. p. 313) cites Andrieux, 

 226, and Jurgensen, 283, as belonging to it. See i. p. 218. 



[i. p. 184.] Order XXXV * CHAILLETIACE^. 



Chailletiaceee, Benth. et Hook. Gen. Plant, i. p. 340. 



Of this Order there are three genera and about forty species, widely spread in 

 Tropical Asia, Africa, and America, and one species occurs in Extratropical South 

 Africa. Two of the genera are exclusively South Am erican. 



1. CHA1LLETIA. 



Chailletia, DC. in Ann. Mus. Par. xvii. p. 153, cum ic. ; Benth. et Hook. Gen. Plant, i. p. 341. 

 About thirty species, having the same range as the Order. 



l. Chailletia, sp. 



Guatemala (Bernoulli & Carlo). 



CELASTRINE.E. 



[i. p. 191.] 3. Mortonia palmeri, Hemsl., etM. effusa, Turcz., = 2. M. greggii, 

 A. Gr. ex S. Wats, in ProcV^m. Acad. xvii. p. 336. 



North Mexico, Sierra Madre, south of Saltillo, and in the mountains east of the 

 same place (Palmer, 323). 



[i. p. 191.] 4. Mortonia SCabrella, A. Gr., S. Wats, in Proc. Am. Acad. xvii. 



p. 336. 



North Mexico, Parras. Coahuila (Palmer, 2111). 



[i. p. 194.] 1. Llavea integrifolia, Hemsl.; S. Wats, in Proc. Am. Acad. 



xvii. p. 336. 



North Mexico, Guajuco, Nuevo Leon, and in the mountains north of Monclova, 



Coahuila (Palmer, 182, 183). Hb. Kew. 



