282 



des Jahres 1890 in der Nähe von Alamos und in Arizona gesam- 

 melten Pflanzen aufgezählt und teilweise beschrieben werden. — In 

 dem der Flora von Alamos im Staate Sonora — Alamos ist als die 

 Heimat der springenden Bohnen bekannt — gewidmeten Aufsatze*) 

 heisst es auf pag. 112**): 



Sebastiania Palmeri, n. sp. A loose-growing shrub 5 to 

 8 feet high, or sometimes a small tree 10 feet high, 5 inches in 

 diameter, glabrous, dioecous: leaves lanceolate, to narrowly lanceo- 

 late, 21/2 to 4 inches long, including petiole 6 lines***) long, slightly 

 dentale: female flowers solitary, sessile; calyx 3-parted, its lobes 

 oval, serrate; petals none; styles 3, connate at the base, entire; 

 ovary 3-celled; valves contorted after dehiscence; seeds 1 in each 

 cell, globose, 2 lines in diameter, without a strophiole. — Seen in 

 various places about Alamos. March 26. to April 8. Nr. 403; also 

 in September. Letter A. The natives speak of it as „Palo de la 

 flecha que da las semillas brincadores"f) — „the arrow-wood which 

 produces the jumping beans". The generic position of the plant in 

 which Carpocapsa is found has long puzzled the botanist and the 

 entomologist. This is partly due to the fact that the fruit which 

 is stung (and this is the kind that is generally collected) appears 

 very different from those developed naturally. While this is evidently 

 a new species, still some uncertainty exists as to its position. Its 

 relationship is doubtless with Sebastiania, but it has close affinities 

 with both Gymnanthus and Bonania; in habit it seems closer to the 

 latter than to either of the other two, however its minute or obsolete 

 calyx seems to be sufficient to keep it out of that genus. It has 

 the rudimentary calyx and connate stamens of Gymnanthus, but has 

 dehiscent and contorted carpels which are thin walled; carpophore 

 wanting; leaves serrate: all of which is at variance with this genus, 

 but corresponds with Bonania. Dr. Palmer says the boys gather 

 these beans, for which they find a ready market at Alamos. None 

 of these beans which has been stung were obtained, as they had all 

 been carefully gathered before Dr. Palmers visit and none of the 

 so-called „jumpers" could be obtained at Alamos at this time. The 

 plant produces an abundance of milk, which is said to be used by 

 the Indians for poisoning their arrows. The milk readily crystallizes 



*) List of plants collected by Dr. Edward Palmer in Western Mexico 

 und Arizona in 1890, pag. 91—116 mit Taf. 1—11; der Titel ist aber insofern 

 nicht ganz richtig, als die Arizonapflanzen in dem zweiten Aufsatze: List of 

 plants coli, by Dr. E. P. in Arizona in 1890, beschrieben sind. Im Titel des 

 ersten Aufsatzes wären daher richtiger die Worte „in Arizona" zu streichen. 

 Wohl aus diesem Grunde ist denn auch im Register der Titel des ersten Auf- 

 satzes etwas anders wiedergegeben, nämlich: List of plants collected by Dr. 

 Edward Palmer, in 1890, at Alamos and Alamos Mountains. 



_**) Ich gebe die ganze Stelle in extenso wieder, da die seltene Schrift 

 wohl in die Hände von nur wenigen europäischen Botanikern gelangen dürfte. 



***) Diese Stelle ist wohl so zu verstehen: Laubblätter lanzettlich bis 

 schmal-lanzettlich, 2*/.^ bis 4 Zoll lang einschliesslich des 6 Linien langen 

 Blattstieles, 



f ) „de los semas brinca dores" im Original ist offenbar verderbt. 



