STAjSTDLEY TEEES AND SHRUBS OF MEXICO. 285 



44. MONIMIACEAE. Monimia Family. 



Reference: Perkins in Engl. Pflanzanreich IV. 101. 1901. 



Shrubs ; leaves opposite, entire or irregularly serrate, estipulate ; flowers small, 

 perfect or unisexual, usually cymose or racemose ; perianth 4 to G-lobed ; corolla 

 none ; stamens numerous ; fruit of numerous small carpels. 



Anthers dehiscent by longitudinal slits 1. MOLLINEDIA. 



Anthers dehiscent by valves 2. SIPARUNA. 



1. MOLLINEDIA Ruiz & Pav. Fl. Peruv. Chil. Prodr. 83. 1794. 

 Leaves entire or dentatfe; flowers pedicellate, in axillary cymes; perianth 4- 

 lobed ; fruit of numerous small drupes. 



Sepals subequal. Stamens 30 to 33 1. M. orizabae. 



Sepals unequal, the outer broader than the inner. 



Leaves pilose when young. Stamens 23 or 24 2. M. viridiflora. 



Leaves glabrous. 



Stamens 25 3. M, m.exicana. 



Stamens 30 to 40 4. M. nigrescens. 



1. Mollinedia orizabae Perkins, Bot. Jahrb. Engler 27: 674. 1900. 

 Known only from the type locality, Orizaba, Veracruz. 



Leaves oblong or obovate-oblong, 8 to 12 cm. long, short-acuminate, glabrous. 



2. Mollinedia viridiflora Tulasne, Ann. Sci. Nat. IV. 3: 43. 1855. 

 Oaxaca ; type locality, mountains of Oaxaca. 



Leaves obovate or elliptic-oblong, 8 to 12 cm. long, petiolate, acuminate, glab- 

 rate in age. 



3. Mollinedia mexicana Perkins, Bot. Jahrb. Engler 27: 674. 1900. 

 Known only from the type locality, Mirador, Veracruz. 



Leaves narrowly oblong or obovate-oblong, 9 to 13.5 cm. long, long-acuminate. 



4. Mollinedia nigrescens Tulasne, Ann. Sci. Nat. IV. 3: 41. 1855. 

 Known only from the type locality, Tenejapa, Oaxaca. 



Leaves lanceolate or oblong-lanceolate, 8 to 12 cm. long, remotely serrate 

 above the middle. 



2. SIPARUNA Aubl. PI. Guian. 2: 864. 1775. 

 Shrubs, usually with a pleasant odor; flowers in short axillary cymes, 

 usually short-pediceled ; fruit of numerous small drupes. 



Leaves copiously stellate-pilose 1. S. riparia. 



Leaves glabrous or nearly so. 

 Leaf blades entire or sinuate-dentate. 



Leaves coriaceous 2. S. andina. 



Leaves membranaceous 3. S. nicaraguensis. 



Leaf blades conspicuously serrate or dentate. 



Inflorescence dense, short 4. S. colimensis. 



Inflorescence lax, conspicuously pedunculate 5. S. sumichrastii. 



1. Siparuna riparia (Tulasne) A. DC in DC. Prodr. 16 ^ 647. 1868. 

 Cltrtosvia, riparia Tulasne, Ann. Sci. Nat. IV. 3: 36. 1855. 

 Veracruz and Oaxaca. Guatemala. 



Tree or shrub ; leaves obovate or oval-obovate, 10 to 17 cm. long, acute or 

 acuminate, irregularly dentate; fruit globose, red. " Limoncillo " (Veracruz); 

 " cerbatana " ( Guatemala ) . 



2. Siparuna andina (Tulasne) A. DC. in DC. Prodr. 16': 648. 1868. 

 Citriosma andina Tulasne. Ann. Sci. Nat. IV. 3: 36. 1855. 

 Mountains of Oaxaca. 



