STANDLEY — TREES AND SHRUBS OF MEXICO. 71 



Flowers not sunk in the rachls of the inflorescence. 



Spathes 2 11. REINHARDTIA. 



Spathes 3 or more 12. CHAMAEDOREA. 



Fruit nutlike, with a bony endocarp. 

 Trunk and leaf bases unarmed. 



Stamens 6; fruit 1-seeded 13. COCOS. 



Stamens 10 to 24; fruit 2 to 6-seeded 14. ATT ALE A. 



Trunk or leaf bases armed with spines, these sometimes black and needle- 

 like. 

 Petals of the pistillate flowers connate only at the base. 



15. ACROCOMIA. 

 Petals of the pistillate flowers united. 



Staminate flowers immersed in the rachis of the inflorescence ; fruit 



spiny 16. ASTROCARYUM. 



Staminate flowers not immersed in the rachis ; fruit not spiny. 

 Trunk erect; seeds with large subapical foramina. 



17. BACTRIS. 

 Trunk trailing or scandent ; seeds with small peripheral foramina. 



18. DESMONCTJS. 



1. THRINAX L. f. ; Swartz, Prodr. Veg. Ind. Occ. 57. 1788. 

 1. Thrinax wendlandiana Becc. Webbia 2: 265. 1907. 



Yucatan. Cuba (type locality) ; Honduras. 



Leaves flabellate, about a meter long, green above, slightly paler beneath ; 

 spadix paniculate-branched ; fruit globose, 5 mm. or more in diameter. Known 

 In Cuba as " miraguano de lana," " guano de lana," or " guano de costa." 



2. INODES Cook, Bull. Torrey Club 28: 529. 1901. 

 Reference: Beccari, Webbia 2: 10-86. 1907 (as Sabal). 

 Plants with tall trunks ; leaves flabelliform, the margins of the segments 

 with numerous long threads; fruit small, globose, usually black. 

 Seeds small, 5 to 8 mm. broad. Branches of the inflorescence slender. 



Fruit globose, not at all asymmetric 1. L mexicana. 



Fruit more or less asymmetric at the base 2. L japa. 



Seeds large, 10 to 13 mm. broad. 

 Branches of the- pistillate inflorescence strongly thickened, fusiform. Em- 

 bryo lateral 3. L uresana. 



Branches of the pistillate inflorescence slender. 



Embryo lateral --^ 4. L rosei. 



Embryo subdorsal . 5. L texana. 



1. Inodes mexicana (Mart.) Standi. 



Sabal mexicana Mart. Hist. Nat. Palm. 3: 246. pi. 8, f. 1-7, pi. V, f. J,. 

 1836-50. 



Tepic to Zacatecas and Oaxaca (type locality), and perhaps farther east 

 ward. Guatemala. 



Trunk 10 to 20 meters high, when young clothed with the persistent petioles, 

 but in age naked ; leaf blades somewhat recurved ; inflorescence short and 

 dense, recurved ; fruit depressed-globose, about 8 mm. in diameter. " Palma 

 real" (Oaxaca); "palma redonda " (Michoacdn, Guerrero). 



2. Inodes japa (Wright) Standi. 



Sahal japa Wright; Sauv. Anal. Acad. Ci. Habana 7: 562. 1870. 

 Yucatan. Cuba (type locality). 



