CHIAPASIA. 203 



2. Disocactus eichlamii (Weingart) Britton and Rose, Contr. U. S. Nat. Herb. 16: 259. 1913. 

 Phyllocactus eichlamii Weingart, Monatsschr. Kakteenk. 21: 5. 191 1. 



Branching near the base; branches oblong, 2 to 3 dm. long, 3 to 5 cm. broad, cuneate at base, 

 obtuse, thickish, strongly crenate; flowers several at the uppermost areoles, slender, 4 cm. long; 

 stamens and style exserted; stigma-lobes 5; fruit red, i cm. in diameter with white pulp; seeds 

 1.5 mm. long. 



Type locality: Guatemala. 



Distribution: Guatemala. 



This plant we know only from the collection of F. Eichlam; living specimens were 

 sent to Washington by him which soon afterward flowered, but these have since died. 

 Eichlam wrote that the flowers were a brilliant red. The species was named for Federico 

 Eichlam, who lived in Guatemala at the time of his death in 1 9 1 1 . 



Illustration: Contr. U. S. Nat. Herb. 16: pi. 79. 



Figure 205 is from a photograph of the type plant in flower. 



6. CHIAPASIA gen. nov. 



An epiphytic spineless cactus, the branches flattened, crenate, with slender terete bases, the 

 large flowers borne at upper areoles; perianth narrowly campanulate; tube about half as long as 

 limb, bearing a few small triangular scales; segments about 8, linear, recurved, spreading; ovary 

 ovoid, shorter than tube, also with a few small scales; filaments about 20, not longer than perianth- 

 segments ; stigma-lobes few. 



Type species: Epiphyllum nelsonii Britton and Rose. 



A monotypic genus, its name taken from that of the Mexican state in which it grows. 



1. Chiapasia nelsonii Britton and Rose. * 



Epiphyllum nelsonii Britton and Rose, Contr. U. S. Nat. Herb. 16: 257. 1913. 



Phyllocaclus nelsonii Vaupel, Monatsschr. Kakteenk, 23: 116. 1913. 

 Phyllocactus chiapensis ]. A. Purpus, Monatsschr. Kakteenk. 28: 118. 



1918. 



Fig. 206. — Chiapasia nelsonii. 



Branches 6 to 12 dm. long, slender and terete below, flat and thin above, 3 to 4 cm. broad; 

 margin low, crenate ; flowers light rose-red ; tube 2 to 3 cm. long ; segments about 6 cm. long, narrow, 

 acute. 



Type locality: Near Chicharras, Chiapas, Mexico, altitude 900 to 1,800 meters. 

 Distribution: Known only from Chiapas. 



