814 CONTRIBUTION'S FROM THE NATIONAL HERBARIUM. 



3. Buettneria salicifolia Presl. Rel. Haenk. 2: 144. 1836. 



Described from western Mexico ; known to the writer only from the original 

 description. 



Branches terete, tomentose ; leaves lanceolate, acute or short-acuminate, 

 sharply dentate, glabrous above, tomentose beneath ; flowers umbellate, 2 mm. 

 long, the umbels axillary. 



98. DILLENIACEAE. Dillenia Family. 



Trees or shrubs, sometimes scandent ; leaves alternate, simple, estipulate, 

 commonly scabrous ; flowers paniculate, terminal or axillary, usually perfect or 

 polygamous ; sepals 3 to 5, distinct or nearly so, strongly imbricate, persistent ; 

 stamens numerous, free, the anthers erect or versatile ; fruit baccate, or usually 

 of 1 to 5 dry carpels, these dehiscent on the inner or on the dorsal side ; 

 seeds usually arillate. 



Anthers versatile; fruit baccate. Plants erect 1. SATJRAUIA. 



Anthers erect ; fruit 1 to 5 dry carpels. 



Inner 2 sepals much larger than the others, accrescent and inclosing the 



fruit. Plants scandent 2. DAVILLA. 



Inner sepals similar to the others, not accrescent. 

 Inflorescence chiefly terminal ; plants scandent ; aril lacerate. 



3. TETRACERA. 

 Inflorescence wholly axillary; plants erect; aril not lacerate. 



4. CTJRATELLA- 



1. SAXJRAUIA Willd. Ges. Naturf. Freund. Berlin Neue Schrift. 3: 407. 1801. 

 Shrubs or small trees, usually with setose or paleaceous pubescence; leaves 

 commonly serrulate, the lateral nerves numerous and parallel ; flowers in axillary 

 pedunculate panicles, commonly perfect ; sepals 5 ; petals 5, connate at base or 

 nearly free; stamens numerous, adherent to the base of the corolla, the 

 anthers versatile ; fruit baccate, 3 to 5-celled, the seeds small, embedded in 

 pulp. 



A monograph of the genus by Buscalioni has been in the course of publica- 

 tion in Malpighia (volumes 25 to 28) for several years. 



The name " pipicho " is reported for one of the Oaxaca species. The fruit 

 is said to be sweet and mucilaginous, and a syrup made from it is adminis- 

 tered for chest affections. 

 Leaves setose-pilose benath, or sometims scabrous, with short simple hairs. 



Leaves densely setose-scabrous beneath 16. S. aspera. 



Leaves setose-pilose beneath. 



Bracts of the inflorescence linear 1. S. conzattii. 



Bracts oval 2. S. pseudopeduncularis. 



Tieaves glabrate or stellate-pilose beneath. 

 Leaves glabrate beneath. 



Leaves without tufts of hairs beneath in the axils of the lateral nerves. 



3. S. leucocarpa. 

 Leaves with conspicuous tufts of whitish hairs beneath in the axils of 

 the lateral nerves. 



Inflorescences short, 2.5 to 7 cm. long 4. S. barbigera. 



Inflorescences elongate, mostly 10 to 20 cm. long. 



Leaf blades acute at base 5. S. serrata. 



Leaf blades obtuse or rounded at base 6. S. reticulata. 



Leaves stellate-pilose beneath, usually rather densely so. 



Leaves entire toward the base, crenate toward the apex, densely tomentose 

 beneath . 7. S. radlkoferi. 



