ROBINSON. — ON CERTAIN EUPATORIEAE. 195 



angulatis glabris basin versus attenuatis ; pappi setis gracillimis albis 

 25-30 coroUam subaequantibus. — Limestone rocks, Trinidad Moun- 

 tains, Santa Clara, Cuba, Arroyo Cimarron, altitude 470 m., N. L. & 

 E. G. Britton, 5 March, 1910 (type, in Gray Herb.). 



Eupatorium (§ Imbricata) pluriseriatum, sp. nov., fruticosum 

 inflorescentia excepta glaberrimum ; ramis arcuatis pallide griseo- 

 brunnescentibus subteretibus lucidulis; ramulis purpurascentibus stri- 

 atulis ; foliis oppositis graciliter petiolatis ovatis firmiusculis longe 

 falcatim attenuato-acuminatis denticulatis 9-12 cm. longis 4.5-5.5 cm. 

 latis utrinque laete viridibus basi rotundatis sed ad insertionem petioli 

 ca. 2.7 cm. longi in eo plus minusve acuminato-decurrentibus ; panicula 

 corymbosa oppositiramea multicapitulata densiuscula, axe et ramulis 

 puberulis ; capitulis (infeliciter immaturis) cylindraceis ca. 8 mm. altis 



4 mm. diametro 7-10-floris breviter pedicellatis vel in apicibus ramu- 

 lorum subsessilibus et fasciculatim aggregatis ; involucri squamis valde 

 iuaequalibus multiseriatim imbricatis glabris subscariosis viridi-stria- 

 tulis fimbriati-ciliolatis, apice rotundatis, margine saepius brunne- 

 scentibus quasi ustis, a receptaculo cylindrico truncato caducis ; corollis 

 glabris graciliter tubulosis quam achaenis etiam glabris multo longi- 

 oribus ; pappi setis tenuibus corollas subaequantibus sursum minute 

 scabratis. — On bank ; Aguacate, altitude 750-850 m., Trinidad Moun- 

 tains, Santa Clara, Cuba, 10-11 March, 1910, N. L. Britton S Percy 

 Wilson, no. 5407 (type, in Gray Herb.). 



Eupatorium urticaefolium Reichard, var. tomentellum, var, nov., 

 formae typicae habitu statura foliis etc. simile ; caule ab apice usque 

 infra mediam partem dense breviterque crispe griseo-tomentello ; foliis 

 plerumque subtus tomentellis. — Madison, Wisconsin, 28 August, 1893, 

 Judge J. B. Churchill (type) ; Mt. Carmel, Illinois, 1875, Dr. D. 

 Schneck (Gray Herb.) ; edge of maple forest, Marquette, Michigan, 12 

 August, 1901, Bronson Barhw (Gray Herb.). This variety differs 

 from E. urticaefolium, var. vilUcaule Fernald of the middle Atlantic 

 States in having a very much shorter closer non-viscid indumentum. 



Mikania cristata, sp. nov., robusta scandens ; caulibus angulato- 

 striatis puberulo-tomentellis, internodiis usque ad 1.7 dm. longis; 

 foliis oppositis longe petiolatis late ovatis profunde cordatis acumi- 

 natis firmiusculis integriusculis utrinque breviter velutino-tomentosis 

 a basi 3-5(-9)-nerviis ; petiolis robustis recurvatis tortis anguineis ca. 



5 cm. longis basin versus crassioribus, eis ejusdem jugi membrana 

 stipulari margine appendicibus caudiformibus conspicue cristata con- 

 nexis ; capitulis 4-flori8 corymbosis ca. 9 mm. longis breviter pedicil- 

 latis, corymbis oppositis pedunculatis ca. 1 dm. diametro, pedunculis 

 (4-6 cm. longis) et inflorescentiae ramulis valde compressis ; involucri 



