38 BOTANY OF THE VOYAGE OF THE SULPHUR. 
antice serie duplici dentium longitudinaliter armatum, rostro mox in cornua 2 divaricata fisso, et maturitate 
usque ad basin in valvulas 2 dehiscens ; dentes per dehiscentiam ad margines valvulorum alternatim persistunt, 
postici 3-4 lin. longi, duri, sublignosi, apice dilatati et sceepe breviter lobati, supremum utriusque valvule in 
rostrum productum brevius tamen quam cornu terminalis valvule ; dentes antici minores, omnes erostres. 
Fructus intus unilocularis; placentee 2, medio valvularum longitudinaliter adnate, basi simplices steriles 
anguste, supra basin bifido-dilatatee usque ad parietes fructus utrinque attingentes et ibidem utrinque 
seminiferse, dissepimenta formant spuria fructum dividentia in loculos 5 omnes seminiferos, quorum 4 inter 
placentas et parietes fructus, quintum in medio fructu inter placentas sita. Semina cujusve placente circa 15, 
infima pendula, cetera plus minus transversa, omnia obovoidea, testa spongiosa rugosa, albumine nullo. 
Embryo membrana tenui inclusa, cotyledonibus carnosis plano-convexis obovatis, radicula brevissima ad hilum 
spectante. 
The fruit of Martynia is described by Endlicher (Gen. Pl. p. 724) and 
others as 4-locular, with a perforate axis, which can scarcely be considered as 
organically correct, or yet in conformity with the apparent structure. It is, 
strictly speaking, unilocular, and most clearly so in the lower part of the fruit ; 
but in the upper part it is distinctly divided into five cells, all of them 
containing seeds, for the parietal placente of the ovarium bear ovules both on 
their inner and outer edge, some of which are matured in the space intervening 
between the two placente, designated by Endlicher as a perforate axis. Gzertner, 
who has very accurately figured the fruit of M. proboscidea (Carp. v. 2, t. 10), 
correctly denominates this space a fifth spurious cell, although he terms it empty 
(inanis), whereas he certainly represents it (fig. c.) as bearing seeds, as I have 
also found to be the case. The perforate axis of some Verbenacee, sometimes 
designated as a third cell, is very different, being really an empty space inter- 
vening between two perfectly closed carpella. 
The species now described is probably near M. triloba, Cham. and Schlecht. 
a Mexican plant unknown to me, but of which the description does not agree 
with our plant either in the form, texture, or position of the leaves. The J. pro- 
boscidea differs again in the form and proportion of the calyx and corolla, the 
form of the leaves, and the absence of any crest or teeth on one side of the 
putamen of the fruit, as well as the want of the horn to the upper tooth on the 
other side. 
ACANTHACER. 
128. Beto cali: * 7 . . 
we ‘ : pectin” ifornica, sp. n., ramulis pubescentibus, foliis petiolatis ovatis vel ovato- 
ceolatis basi truncatis vel late cordatis utrinque breviter puberul 
| be aes ekg is, racemis brevibus terminalibus, 
bracteis minutis, bracteolis lineari-subulatis calyce brevioribus 
> 
i . ie ie corolle fu slab: . 
Superiore emarginato inferiore apice breviter trifido.—Cape San Lucas profunde bilabiatz labio 
— ramosus, paucifoliatus, ramulis albidis teretibus, junioribus subflavescenti-pubescentibus. Folia 
