676 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



8. Ilex rubra S. Wats. Proc. Anier. Acad. 21: 422. 1886. 

 Mountains of Chihuahua ; type from Norogaclii. 



Tree, 4 to 7 meters high, glabrous or nearly so ; leaves oval, obovate, or 

 oblong-lanceolate, 4.5 to 6 cm. long, acute, serrate, minutely puberulent above 

 along the costa ; fruit globose, red, 7 to 8 mm. in diameter ; nutlets 4. 



9. Ilex dugesii Fernald, Bot. Gaz. 20 : 533. 1895. 



Knov.n only from the type locality, Sierra de Santa Rosa, near Guanajuato. 



Leaves oblong, obovate-oblong, or oval-oblong, 3.5 to 6 cm. long, acute or 

 obtuse at base, short-acuminate at apex, serrulate ; fruit globose, 7 to 8 mm. 

 in diameter, red ; nutlets 4. " Naranjillo." 



83. CELASTEACEAE. Bi.ttersweet Family. 



Shrubs or trees, sometimes scandent ; leaves opposite or alternate, entire 

 or toothed ; stipules minute and caducous or wanting ; flowers small, perfect, 

 usually cymose ; calyx 4 or 5-lobed ; petals 4 or 5, small, spreading, sessile 

 below the margin of the disk, imbricate; stamens 4 or 5, the anthers 2-celled ; 

 ovary 2 to 5-celled ; fruit capsular, baccate, drupaceous, or samaroid. 



Fi'uit a samara. 



Fruit longitudinally 3-winged ; leaves alternate 1. WIMMEK.IA. 



Fruit with a single terminal wing; leaves opposite 2. ZINOWIEWIA. 



Fruit a capsule, berry, or drupe. 

 Fruit a capsule. 

 Leaves opposite. 



Capsule 1-celled 3. MICROTBOPIS. 



Capsule 2 to 5-celled. 



Capsule 3 to 5-celled 4. EUONYMUS. 



Capsule 2-celled 5. PACHYSTIMA. 



Leaves alternate. 



Ovary free from the disk ; ovules 2 in each cell 6. CELASTB-US. 



Ovary confluent with the disk; ovule 1 in each cell 7. MAYTENUS. 



Fruit a berry, drupe, or indehiscent capsule. 

 Leaves all or most of them opposite. 



Flowers dioecious ; sepals distinct or nearly so 8. GYMINDA. 



Flowers perfect; sepals united below 9. EHACOMA. 



Leaves all alternate. 



Stamens 10; petals ligulate or oblanceolate 10. FOESEXLESIA. 



Stamens 4 or 5 ; petals broad. 



Flowers 4-parted 11. SCHAEFFEIIIA. 



Flowers 5-parted. 

 Fruit dry. 



Fruit 1-seededr leaves entire 12. MORTONIA. 



Fruit 2-seeded ; leaves glandular-serrate__13. ORTHOSPHENIA. 

 Fruit drupaceous or baccate. 



Fruit 1-celled, 1-seeded ; branches spinose, the leaves caducous. 



14. ACANTHOTHAMNUS. 

 Fruit 2 or 3-celled, 2 to 6-seeded ; branches not spinose, the 

 leaves persistent. 

 Flowers paniculate; ovary free from the disk. 



15. PERROTTETIA. 

 ' Flowers cymose; ovary confluent with the disk. 



< I 16. ELAEODENDRON. 



