OF THE MATTO GROSSO EXPEDITION, 1891-92. 341 
ALLOPHYLLUS SEMIDENTATUS, Radlk. MSS. (Schmidelia semidentata, Miq. in Linnea, 
xxii. (1849), p. 798.) 
Hab. Reperi in ripá fl. Paraguay inter Santa Cruz et Diamantino mens. Oct. 
florentem. (N. 616.) [Bras. Or.] 
Professor Radlkofer was good enough to determine my specimens of this puzzling genus. 
THINOUIA SEPTUM (sp. nov.) Scandens, ramulis gracilibus, teretibus, puberulis, mox 
glabris ; foliis longipetiolatis, ternatis ; foliolis petiolulatis, ovatis, obtusis, mucronatis, 
basi late truncato-cordatis, margine crenato-lobulatis, tenuiter membranaceis, cito 
utrinque glabris vel fere glabris; eymulis longiuseule peduneulatis, solitariis vel 
racemosis, plurifloris, globosis, nune cirrho unico, nune cirrhis binis onustis, nunc 
ecirrhosis ; sepalis oblongis, ciliolatis; petalis pugioniformibus, sepala excedentibus ; 
staminibus 6-8, exsertis; disco hypogyno integro; carpellorum alis erectis ad 
columellam centralem affixis; fructus immaturi loculo ovoideo. 
Hab. Crescit ad Corumbá, ubi mens. Jan. floret. (Nn. 943, 1076.) 
Ramuli 0:2-0:3 cm. diam., in sicco pallidi, crebre striatuli, lenticillis parvis elevatis 
muniti.  Petioli patuli, graciles, 3:0-5:0 em. long. (superiores vero breviores), 
obsolete puberuli. Foliola in sicco viridia, pleraque 4'0-6:0 cm. long., et 3:0-6:0 
cm. lat., fol terminale reverá quam lateralia longius et eximie latius; costie 
secundarize utrinque 4-5, ascendentes, primo recte, dein leviter arcuate, sspe 
in dentem brevem desinentes ; fol. lateralium petioluli patuli, circa 0°5 cm. long., 
fol. terminalis petiolulus 1:0-1'5 cm. long., superne anguste alatus. Pedunculi 
cymarum solitariarum seepe 4°0 vel 5°0 em. attingentes, cymularum racemosarum 
+2:0 em. long., minute puberuli, graciles. Cymule 1:0 cm. diam., si racemosim 
dispositee pedunculis (neque ultra 0'8 em. long.) insidentes. Flores albi. Pedicelli 
puberuli, usque ad 0:2 cm. long. Sepala 0°08 cm. long. Petala 0°1 cm. long., 
longiuscule pilosa. Filamenta inferne pilosa, superne sensim attenuata et glabra, 
0:17 cm. long.; antherz ovato-oblonge, pilose. Fructus nondum maturus stipite 
0:6 em. long. insidens, oblyratus, apice retusus, minute puberulus, usque ad 
1:4 cm. long., sursum 0'8 cm. lat., ejus loculus 0:6 cm. long. 0:5 em. lat. 
Non dubito quin affinis sit 7. paraguensi (Thouinie paraguensi, Britton, in Ann. 
N. York Acad. Sc. vii. (1893) p. 75; Balansa 2486, 2486 a, et 2488 in Herb. Kew.), abs 
quá reverà primo obtutu cognoscenda, inter alia, foliolis disparibus, membranaceis, nec 
subtus molliter pubescentibus. 
While agreeing with Radlkofer that the nature of its inflorescence and fruit justifies 
the separation of Thinowia from Thouinia, 1 cannot but regret that the former name 
should be used in preference to Karsten's Carpidiopteryr, published at the same time 
as Thinowia, and free from the objection of being a mere anagram, and, moreover, a 
puzzling one. As, however, Radlkofer adheres to Thinouta in the recently published first 
part of the Sapindaceze of Von Martius's * Flora Brasiliensis, there seems to be no 
option but to follow his lead. [Paraguaria.] 
MATAYBA GUIANENSIS, Aubl. Pl. Guian. i. p. 331. 
Hab. Ad Santa Cruz flores albos preebet mens. Dec. (N. 765.) [Bras. Or., Guiana, 
Amazonia. | 
