FEU. 1903. PLANIVE YUCATAN/E MILLSPAUGH & CHASE. 



mucronate. Achene.gxi mm., light brown, orbicular, transversely 

 rugose, the 2 angles prominent, smooth; tubercle depressed-decur- 

 rent, nearly as wide as the achene, rusty black; achene in section 

 turgid biconvex. 



Hab. "One foot high, common in the forests of Buena Vista 

 Xbac, September," Gaumer 1115. 



CLADIUM P. Br. Civ. and Nat. Hist. Jam. 114. 



Inflorescence elongated paniculate. Spikelets 1-4 flowered, per- 

 fect, the upper only perfecting fruit. Glumes spirally imbricated. 

 Style 3-cleft; bristles (in our species) none. Achene ovoid, more or 

 less drupaceous. Stamens 2-3. 



Cladium Mariscus (L.) R. Br. Prod. 236. 

 ScKcenus Mariscus L. 

 Cladium Jamaieense Crantz. 

 Cladium Germanicuni Schrad. 



Inflorescence an elongated panicle of 5-10 dense, many-flow- 

 ered corymbs, overtopped by long-attenuate, sharply serrate leaf- 

 like bracts; axis subterete, flat- 

 tened or channeled on one side, 

 smooth, stiff. Corymbs 5-9 cm. 

 in diameter, branches slender, 

 smooth, bractlets subulate, sharply 

 serrulate. Spikelets 5-15 in a fas- 

 cicle, chestnut, 2-flowered. Glumes 

 ovate, obtuse, the lower empty and 

 YI the length of the upper; the 

 upper flower only perfecting fruit. 

 Achene 1.5x3 mm., ovoid, acute, 

 tapering or truncate at base, chest- 

 nut brown, " drupacea, exocarpio 

 plus minus spongioso in sicco fragi/i, 

 endocarpio dura;" in section sub- 

 orbicular. The " endocafp " or nutlet 1.1-1.2x1.8 mm., ashy black, 

 granular, slightly 4-lobed, truncate and more strongly lobed at base. 

 Hab. Salt swamps, Progreso, April 3, 1865, Schott 298 ; abund- 

 ant on margins of cenote"s, 12 feet high, Izamal, March, Gaumer 436 

 (Cladium Gcrtnanicum Field Col. Mus. Bot. 1:290), Chichankanab/j^. 

 Called HOLCHE, "tree-like herb," by the Mayas. 

 None of the specimens from Yucatan have mature fruit, and hav- 

 ing no mature fruit of the species from the American tropics {Broad- 

 way 780 Grenada, ex herb. Krug et Urban, being past maturity and 

 having shed all its fruits), the illustration is drawn from a specimen 

 from "Baltic shore, Germany," coll. Dr. Schmidt 1829, the identity 

 of Cladium Germanicuni and C. Mariscus being taken on the authority 

 of Mr. C. B. Clarke (in Urb. Sym. 2:134, J 35)' where the range is 

 given: " Distrib. in temperatis et calidis orbis fere totius." Evi- 

 dently a variable species; the drupaceous character of the fruit render- 

 ing it less constant than is the case in other of the Cyperacea?. 



