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 minute squamu- 
losis glabris: spinulis marginalibus antrorsum incurvis remotiusculis ver- 
sus vaginam elongatam laminae aequilatam evanidis, spica composita in 
strobilum oblongo-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— floris dense 
congestis: floribus distichis: bracteolis geminis flori lateralibus verticaliter 
basi lata insertis deltoideis mucronatis, calyce 3partito 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, antheris 
sagittato-incumbentibus, styli apice trifido: stigmatibus linearibus paten- 
tibus, bacca 3loculari polysperma: seminibus obpyramidato-oblongis nu- 
dis. — DBracteolae 2 laterales margine foveae floris dorsum excipienti 
verticaliter adnatae, bracteolae typicae basilari homologae, characterem 
speciei dant eximium. Caulis 4pedalis; spica terminalis 8—10% longa, 
2j” lata; folia inferne vaginantia 2— 3pedalia, 1'/»— 2^ lata, spinis 
marginalibus 1°“ longis, 4—6*^ distantibus, terminali validiori; bracteae 
6°, bracteolae 4^^ longae et latae; calyx 5'^, petala 6'^ longa, „coeru- 
leo-rosea*, squamis oblongis staminibusque 1°‘ a basi unguis distantibus, 
ungue post anthesin persistente; filamenta epipetala 3°, epigyna 4'^ 
longa, anthera lineari 2° longa; stylus 5° longus; bacca subglobosa, 
5^! 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 
membranaceis ovato-subulatis apice cuspidatis pedicello brevi multo lon- 
gioribus florem dimidium subaequantibus, sepalis ovato-acuminatissimis 
42 
