SYMBOLAE AD FLORAM ARGENTINAM. 329 



vernac. Chaguar. — O. : Oran , pr. S. Lorenzo; Gr. Chaco, ubi fre- 

 quens. 



2136. Chevalliera grandiceps Gr. n. sp. foliis lineari-oblongis cuspi- 

 dato-acuminatis spinaque terminatis pallide virentibus miimte sqiiamu- 

 losis glabris: spinulis marginalibus antrorsum incurvis remotiusculis ver- 

 sus vaginam elongatam laminae aequilatam evanidis, spica composita in 

 strobilum oblonge- lanceolatum grandem apice attenuatum milleflorum 

 coadunata caulem simplicem vaginis oblongis inermibus apice in cuspidem 

 spinescentem attenuatis involutum terminante, bracteis spiculas fulcienti- 

 bus parvis cuspidato-deltoideis flore imo superatis, spiculis 5 — Sfloris dense 

 congestis : fioribus distichis : bracteolis geminis flori lateralibus verticaliter 

 basi lata insertis deltoideis mucronatis, calyce Spartito ovario aequilongo : 

 segmentis concavo-subulatis apice spinescentibus corolla parum superatis, 

 petalis epigynis spathulato-linearibus supra basin squama profunde bifida 

 plana instructis et staminiferis : staminibus alternis epigynis, antberis 

 sagittato-incumbentibus, styli apice trifido: stigmatibus linearibus paten- 

 tibus, bacca Sloculari polysperma: seminibus obpyramidato-oblongis nu- 

 dis. — Bracteolae 2 laterales margine foveae floris dorsum excipienti 

 verticaliter adnatae, bracteolae typicae basilari homologae, characterem 

 speciei dant eximium. Gaulis 4pedalis ; spica terminalis 8 — 10" longa, 

 2^/2" lata; folia inferne vaginantia 2 — 3pedalia, 1^/2 — 2" lata, spinis 

 marginalibus \"' longis, 4 — 6'" distantibus, terminali validiori; bracteae 

 6"', bracteolae 4'" longae et latae; calyx 5'", petala 6'" longa, ,,coeru- 

 leo-rosea", squamis oblongis staminibusque \'" a basi unguis distantibus, 

 ungue post anthesin persistente; filaraenta epipetala 3'". epigyna A'" 

 longa, anthera lineari 2'" longa; Stylus 5'" longus; bacca subglobosa, 

 b'" diam. — O. : Oran, versus S. Andres, epiphytica in sylvis virgineis. 



2137. Pitcairnia spathacea Gr. n. sp. foliis rigidis lineari-acumi- 

 natis convolutis supra basin remote spinuloso-serrulatam integerrimis supra 

 minute furfuraceis , subtus striatis glabrescentibus , racemis spiciformibus 

 remotifloris in paniculam patentem elongatam glabram dispositis, bracteis 

 raembranaceis ovato-subulatis apice cuspidatis pedicello brevi raulto lon- 

 gioribus florem dimidium subaequantibus , sepalis ovato-acuminatissimis 



mys. Ol. XXIV. 1. Tt 



