OF THE MATTO GROSSO EXPEDITION, 1891-92. 327 
lanceolatis, bracteolas excedentibus ; calycis villosi segmentis lanceolato-oblongis, 
obtusiusculis, sub fructu glandulas plus quam 2-plo excedentibus ; samarz alis late- 
ralibus 4, discretis, insequalibus, nune late obovatis, nune oblongo-spathulatis, margine 
eroso-undulatis; alà dorsali subquadraté, erosá, quam laterales breviore. 
Hab. Viget in nemorosis ad Santa Cruz, mens. Nov. fructum prebens. (N. 562.) 
Frutex incerte altitudinis, copiose ramosus. Folia ad 8:0 em. long., medio ad 3:3 cm. 
lat. basin versus leviter coarctata, margine undulata et basin versus passim glandu- 
lifera, membranacea subtus aliquanto decoloria; nervus medius pag. superiore 
appresse tomentosus pag. inferiore eminens; costs secundariz utrinque circa 6, 
oblique insertze, erecto-ascendentes, parum aspectabiles; venulee subobsolete. 
Petiolus 0:2-0-25 cm. long. lanato-villosus, ad apicem faciei superioris glandulis 
duabus rubellis parvis (vix 0:05 cm. long.) gaudens. Pedicelli 1:1-1:3 cm. long., 
lanato-villosi. Bracteze lineari-lanceolatee, dorso lanato-villosee, inferne glanduloso- 
bidenticulate, 0:3 cm. long. Bracteolæ bracteis similes nisi minores, 0:2 cm. long. 
Flores desunt. Calycis segmenta sub fructu 0'4 cm. long.; glandule 0'2 cm. 
long., elliptieze, superne coarctatz. Fructus circa 2:5 cm. diam. Samare rubelle ale 
laterales majores 0:9 cm. long., 08 em. lat.; minores majoribus «equilongi, 0*5 em. 
lat.; alà dorsalis 0°5 em. long., 0°6 cm. lat.; ale omnes papyracex, eximie 
nervatze. 
Ex affinitate Tetrapteridis metallicoloris, A. Juss., sed aliquot notis dispar. 
I have ventured to describe this plant, although the only specimen which has survived 
is without flowers. A plant of Burchell’s collecting (n. 5754 in Herb. Kew.) should 
perhaps be referred to this species. [ Bras. Or.] 
TETRAPTERIS ($ PENTAPTERIS) PRACOX (sp. nov.); caule ramoso, tereti, lanato-tomentoso, 
demum glabro, cortice fusco-cinereo crebre lenticellifero obtecto ; foliis petiolatis (ut 
apparet) ovatis seu ovato-oblongis, margine obscure undulatis, chartaceis, supra 
glabris, subtus tomentoso-pilosis ; ramis sepe umbellis preecocibus instructis, umbellis 
lateralibus plerumque 2-6-floris; pedunculis sepissime subsessilibus, prophyllis 
pluribus parvis linearibus sericeis instructis; pedicellis gracilibus, pedunculo 
multoties longioribus, supra medium articulatis et juxta medium bibracteolatis ; 
bracteis parvis linearibus, bracteolis conformibus; calycis sericeo-velutini segmentis 
lanceolato-ovatis, quam glandulee vix duplo longioribus; petalis insequalibus, ungui- 
culatis, ovatis vel panduriformibus, apice retusis; samare alis lateralibus omnino 
disjunctis, subsequalibus, late linearibus, retusis vel margine apicali eroso-undulatis, 
alà dorsali lateralibus subsimili, sed plus quam duplo breviore. 
Hab. Juxta urb. Cuyabá abundat, et mens. Aug. flores neenon fructus vix maturos 
prebet. (N. 17.) 
Frutex prolixus, circa 1 met. alt., inferne aphyllus. Folia, ut videtur, ad circa 5:5 cm. 
. long. et 3:0 cm. lat.; petiolus ad 0:6 cm. long., lanato-tomentosus, sat pinguis, 
glandulas 3 parvas in sicco atras et nitentes circa 0:015 cm. long. gerens. Pedunculi 
raro ad 0:5 cm. long., recti, sericei; prophylla vix ultra 0:15-0:2 cm. long. Bracteze 
usque ad 0:38 em. long., una cum bracteolis 0:2 cm. long. sericee. Pedicelli 1:0-vix 
