x | 
WELDENIA . COMMELINACEÆ (AUCT. C. B. CLARKE). 319 
acuminata; vaginæ breves, laxæ, ore ciliatæ. Inflorescentia glome- 
rata, foliis 2 sessilibus suboppositis inclusa; flores in capitulo c. 20. 
Calyx fere ut in Z. pendula. Corollæ tubus longus 6 mill., lobi 5 mill. 
lanceolati. Stamina prope faucem corollæ affixa. — Exemplum man- 
cum sub Wright n. 700 receptum, a cæteris exemplis numeri Wright 
700 toto ccelo diversum est; sed Torrey 1. c. has duas species sub uná 
descripsisse videtur; quorum altera sub nomine Commelina leiandra 
ordinata est; altera (fructu ignoto) an sit Zebrina, Weldenia aut 
genus novum in dubio manet. 
Nova Mexico; inter Texas occidentalem et El Paso (C. Wright 
n. 700 partim). 
XXVI. WELDENIA, Schultes f. in Flora 1829, fig. 1 A. Lampra, 
Benth. Pl. Hartweg, p. 95. ` 
Calyx tubulosus, superne uno latere subspathaceo fissus, limbus 
3-fidus. Corollæ tubus elongato-linearis, calyce multo longior, limbus 
€ 3 segmentis ovatis patentim horizontalibus constans. Stamina 6, 
eequalia, in superiore parte corollie tubi affixa: filamenta linearia, 
nuda; antheræ loculi oblongi, paralleli, contigui. Ovarium liberum, 
sessile, ovatum, 3-loculare; stylus filiformis; stigma exsertum, peni- 
cilliforme; ovula in unoquoque loculo c. 6, sub-biseriatim superpo- 
sita. Fructus ignotus ; ex ovario verosimiliter capsularis (Benth.). 
Herba semi-pedalis, erecta, parum pubescens. Folia oblonga, inte- 
gra, basi vaginata ; inferiora ad vaginas truncatas depauperata. Flo- 
res dense adgregati, axillares, sessiles, folii vaginam disrumpentes 
(an imprimis perforantes ?). 
Species 1, Mexicana. 
W. candida (Schultes f. in Flora 1829, p. 3, tab. 1. A); Rem. 
et Schultes Syst. 7, p. 1136; Hassk. Commel. Ind. 3; Baker in Journ. 
Linn. Soc. 17, p. 454. W. Schultesü, Schldl Hort. Halens. p. 14. 
Lampra voleanica, Benth. Pl. Hartweg. p. 95, in Hook. Ic. Pl. 13, 
P. 28, tab. 1236. Rugendasia majalis, Ehrenb. ms. 
Tubera fasciculata, oblonga. Caulis 2-3 dm., superne dense folia- 
tus, divisus. Folia longa 8 cent., lata 2 cent., basi angustata, subses- 
silia, subtüs minute flaccide villosula ; vagine late, ore nudæ. Flores 
10-20, dense capitati, ebracteati. Calycis tubus longus 3 cent., superne 
paullo ampliatus, latus 3 mill, puberulus vix pubescens. Corollæ 
tubus longus 5 cent:, latus 1 mill.; lobi 10-12 mill., albi. Filamenta 
