Jennings: Contribution to Botany of Isle of Pines. 247 



obtuse 4-angulosis; foliis spathulato-obovatis vel oblongo-obovatis, 

 ad basin sensim in petiolum brevissimum marginatum angustatis, 

 apice obtusis vel rotundatis, margine superne serrulatis, utrinque 

 plus minusve incano-tomentosis, subtus pallidioribus, supra valde 

 impresso-nervosis et reticulatis, 1-2.5 cni- longis, 5-1 1 mm. latis; 

 nodis floriferis distantibus (2-3 cm.); foliis floriferis 1-1.5 cm. longis; 

 pedunculis gracilibus, 5-9 mm. longis; capitulis globosis, dense multi- 

 floris, ca. 6-7 mm. diametro; bracteis lineari-subulatis, 1-1.5 mm. 

 longis, laxe tomentosis; calyce ca. 2.2 mm. longo, fructifero 3.5 mm. 

 longo, tubo obconico, apice valde recurvo, laxe piloso, lobis triangu- 

 laris, subaequalibus, apice incrassato-subulatis, subhamatis, minute 

 glanduloso-puberulis, i mm. longis; corolla ca. 3 mm. longa, extrinsecus 

 brevissime pilosula, in parte 1/3 superiore bilabiata, lobo antico 

 cucullato, angustato, lobis lateralibus oblique ovatis, obtusis, lobis 

 posticis latis, late rotundatis; staminibus fauci insertis, prominente 

 exsertis, antheris subrotundis; stylo laevi, apice brevissime bilobo; 

 seminibus ovalibus, ca. 0.7 mm. longis, 3-4 mm. latis, minute verrucu- 

 losis, flavido-brunneis. 



Type. — Near Nueva Gerona, Isla de Pinos, W. I., January 19, 1904, 

 A. H. Curtiss, "West Indian Plants," No. joi. Specimen in the 

 herbarium of the Carnegie Museum. 



This species belongs to the section Cyrta Bentham (under Hyptis) 

 and is most closely related to the Brazilian species Mesosphcerum 

 clavelliferum (Bentham) O. Kuntze and if. microphyllum (Pohl) O. 

 Kuntze. The fruiting heads of M. clavelliferum, however, are stated 

 as being 1.5 cm. or more in diameter, nearly three times the dimension 

 of the Isle of Pines plant. The leaves of M. microphyllum differ 

 from the plant from the Isle of Pines in that they are hardly 7 or 8 

 mm. long, and there is a further difference in that the peduncles of 

 the former species are two or three times as long as the heads. The 

 writer has had access to but few specimens from this large and difficult 

 genus, but a careful comparison of the various descriptions available 

 would leave little doubt of the specific distinctness of the plant from 

 the Isle of Pines. 



To those botanists who abide by the Nomina Conservanda of the 

 International Rules of Botanical Nomenclature this plant should be 

 known as Hyptis capitellata. 



