396 PROCEEDINGS OF THE AMERICAN ACADEMY 



glabrJE lobis oblongis (lin. 4 longis) pallidis mox reflexis ; corona 

 exteriore annular! margiue tenui integerrimo gyuostegium fere lineam 

 longuin a3quante, interiore e squamis crassis rotunclo-ovalibus antheris 

 parallelis basi earum adnatis discum stigmatis paullulum superantibus. 

 — Tovar, Venezuela, Fendler, coll. no. 2119. 



Metastelma Pringlei, n. sp. Rocky hills around Chihuahua, 

 Pringle, 62. Species nearest M. Chiapense. — In the subjoined foot- 

 note I have attempted to characterize the known species of Mexico 

 and the United States.* 



* METASTELMA, R. Br. Species Am. Bor. et Mex. 



Schlechtendal's Irmishia {florihunda), with its large leaves, compound 

 cymes, and structure of flower not wliolly clear, is probably not of this genus, 

 and so ought not to give the name of Bentham and Hooker's first section. 

 Nor are their three sections very definitely marked. M. pedunculare, Decaisne, 

 attributed to Mexico by hira, was of the Guatemalan part of Hartweg's collec- 

 tion. In all tlie following species known to us, (except perhaps the first, which 

 is variable,) the peduncles are short, often very short or nearly wanting. 



* Columna (i.e. tubus stamineus) elongata, coronam sub antheris gercns : 



corolla campanulata 5-fida. — § Epicion, Griseb. 

 M. Bahamense, Griseb. Cat. Cub. 174; Gray, Syn. El. ii. 101. — Florida. 

 (Bahamas.) 



* * Columna manifesta sed brevis, coronam juxta antheras gerens: corolla 



5-partita, iraberbis, lineam longa. 



M. ScHAFFNERi. Glabrum, tenue ; foliis lanceolatis basi obtusis ; calycis 

 lobis subulatis ; coroUae subquinquepartitaj lobis oblongo-ovatis crassiusculis 

 intus tantum puberulis ; columna antheris subsequilonga ; coronaj squamis 

 lineari-subulatis discum stigmatis superantibus. — Metastelma Palmeri, Wa.tsox\, 

 Proc. Am. Acad, xviii. 115, quoad pi. Schaffner. — Mexico, near San Luis 

 Potosi, Schaffner, part of no. 652, misprinted 635 in Proc. Am. Acad. 1. c. 



M. ANGUSTiFOLiUM, Turcz. Prffitcr caules striolatos lineato-puberulos pedi- 

 losque glabrum ; foliis lineari-lanceolatis basi acutis ; calycis lobis ovatis ; 

 corollae profunde quinquepartitae prorsus glabrae lobis ovatis ; columna brevis- 

 sima ; coronae squamis lato-ovatis subito acuminatis membranaccis contiguis 

 antheras aequantibus. — Bull. Soc. Nat. Mosc, 1852, ii. 15, & Flora, 1853, 721, ex 

 char. M. Palmeri, Watson, 1. c, as to pi. Bourgeau. — Mexico, Linden, no. 1353. 

 Bourgeau, no. 627. 



* * * Columna nulla vel brevis: corona ad juncturam androccii et corolla 



5-partita3 inserta. 



t- Corolla hand ultra sesquilineam longa, intus glabella, minute cano-papillosa 



vel puberula, nunquam villoso-pubescens : herbae glabra9. 



t-t. Angugtifolia. 



M. Palmeri, Watson, pro parte. Foliis angusto-lanceolatis basi acutiusculis 



vel obtusis : calycis lobis ovatis obtusis ; corollae lobis oblongis seu oblongo- 



lanceolatis ; corona; squamis lanceolatis acuminatis vel ovato-subulatis discum 



