OF THE MATTO GROSSO EXPEDITION, 1891-92. 455 
RENEALMIA HOLDENI (sp. nov.) ; rhizomate obscure noduloso, squamulis laxis instructo ; 
foliis distichis, longe vaginantibus, vaginis truncatis laminam attingentibus vel fere 
attingentibus, laciniis lineari-lanceolatis apice longe acuminatis, deorsum sensim 
coarctatis, fere omnino glabris; scapo radicali leviter scabriusculo vaginis aphyllis 
subremotis instructo ; inflorescentià pluriflorà, subracemosá, elongata, angusta, 
bracteas lanceolatas vel ovatas proferente; pedunculis quam bracte:xe suffuleientes 
duplo vel triplo brevioribus, erectis, scabriusculis, 1-2-floris; floribus parvis, a bracteis 
amplis secundi ordinis fultis; pedicellis ovarium subzequantibus, superne leviter 
incrassatis; calyce ut in R. occidentali, Griseb. ; corollae tubo quam calyx breviore, 
laciniis oblongo-obovatis obtusis, margine ciliatis, laciniá intermediá quam laterales 
paullo minore ; labello lacinias corollze subzequante, obovato obtuso, breviter trilobo, 
undulato, late unguiculato, stamen ¿-amplectente; ovario anguste ellipsoideo, pubes- 
cente, quam calyx 3-plo breviore; stylo filiformi basi a nectario parvo cylindrico 
3-lobo cincto; stigmate late reniformi. | 
Hab. Crescit ad Santa Cruz, neenon in sylvis vicinis, flores preebens menss. Nov.- 
Dee. (N. 680 a.) 
Foliorum lamina ad 28:0 em. long. (plerumque vero cirea 20:0 em.) et vix 30—45 cm. 
lat.; costa media supra impressa, subtus eminens. Scapus circa 25:0 em. alt., 0:25 
em. diam., vaginze 9:5—6:0 em. long., apice truncate. Bracteze inferiores ad 2:5 cm. 
long., superiores 1:0 cm., subscariose. Bracteze secundi ordinis circa 0:5 em. long., 
margine ciliatee vel calve. Calyx 0:6 cm. long. Corolla 1:2 em. long.  Labelli 
lamina vix 0'4 em. ungue 0:15 em. long., basi breviter pulvinata. Anthera 0*4 cm. 
long. Stigma ad 0:1 em. lat. dilatatum. 
A R. occidentali, Griseb., cui affinior, abhorret, foliis minoribus, inflorescentià sub- 
racemosa, rhachide scabriusculá nec pubescente, labello trilobo longius et minus late 
unguiculato, breviter pulvinato, nectario parvo, ete. Arctius accedit ad R. occidentalem, 
var. Paco-secora, cujus pedunculi uniflori vel infimi biflori inflorescentiam fere racemosam 
constituunt. [Amazonia, Guiana, Amer. Centr., Ind. Occ.) 
Named in honour of Mr. N. Lofft Holden, who conducted our boat up to Santa Cruz, 
and first brought this plant to me. 
MARANTACEJX. 
ISCHNOSIPHON NEMOROSUS (sp. nov.); inflorescentià folio magno fultà, vaginá brevi, 
angustá, intus glabra, articulum haud attingente; petiolo valido, ubi in articulum 
abit annulo pilifero instructo; lamina e basi rotundatá, insequilaterá, elongata, 
lanceolato-oblongá, ubi in articulum abit supra late (haud profunde) canaliculatá, 
superne sensim attenuata, acuta, in:quilaterà, apice maxime obliquá, glabra, 
spicis numerosis, angustis, confertis, plurifloris; inflorescentiá quam lamina folii 
suffulcientis plerumque plus quam 2-plo breviore; bracteis oblongis vel oblongo- 
oblanceolatis, acutis vel mucronato-obtusis, concavis, laxe imbricatis, pubescentibus, 
pergamaceis ; corolla tubo, sepalis 3-plo longiore, sursum puberulo; petalis oblongo- 
oblanceolatis, obtusis, glabris; staminodio calloso amplo; staminodii cucullati auricula 
9R2 
