OF THE MATTO GROSSO EXPEDITION, 1891-92. 399 
Caulis vix 0:3 em. diam., tortus, intervallis usque 13:0 cm. long. (sepe vero circa 7'0- 
8:0) foliigerus. Foliorum lamina 5:5-7:0 cm. long., basi 1:7-2:5 cm. lat. (medio 
0"7-1:0 cm.), subtus perpetuo tomentosa; costa media lata, preesertim pag. inf. 
eminens. Pedunculi circiter 0:5 cm. long., satis crassi; pedicelli florum apertorum 
usque ad 0'7 cm. long. Calycis incani lobi 0'3 cm. long., acuti, intus pubescentes. 
Corolla 1:2 cm. diam., 0'8 em. long., extus pubescens; tubus 0:25 em. long., 
longitrorsum rugatus, faucibus pilosulus; lobi intus glabri. Corona vix 0:3 em. 
long., extus deorsum rugulata, intus ore albido-villosula. Antherarum membrana 
generis. Gynostegium 0:2 em. alt. Acuminis stylaris lobi lineares, erecti, coronam 
paullo excedentes.  Folliculi ignoti. 
Speciebus ab duabus hucusque cognitis abhorret indumento tomentoso perpetuo, 
corymbis incanis, corollà brevius divisà, column:e stylaris lobis longioribus, etc. 
l'Uruguaria, Argentina, Paraguaria, Bolivia Or.] 
An interesting addition to this small genus; the variation in the extent of lobing of 
the corona is curious. 
Fournier speaks of the corona as being 10-lobed, the 5 alternate lobes being dentiform. 
Endlicher also mentions the interposed teeth. In the present species, as also in M. bra- 
chystephana, Griseb., the teeth certainly do not exist, although Grisebach, after describing 
the corona of M. odorata as 5-lobed, says that M. brachystephanus has it 10-lobed, which 
is certainly incorrect. Fournier's figure in Martius's Fl. Bras. (vi. pars iv. t. 83) shows the 
5 interposed lobes very clearly; but I cannot help thinking that the supposed small lobes 
are really folds in the corona, the sides of whose lobes are folded inwards to a great 
extent so as to face one another. 
MARSDENIA CAULANTHA (sp. nov.); novellis dense fulvo-tomentosis; caule volubili, 
subtereti, crassiusculo, velutino-tomentoso, dein cinereo et pubescente, vix glabro; 
foliis petiolatis, ovatis, acutis, sursum gradatim attenuatis, interdum leviter cuspi- 
datis, basi obliquis, rotundatis, nonnunquam leviter cordatis, utrinque molliter 
velutinis, subtus pallidioribus ; cymis brevipedunculatis, ex axillis foliorum evani- 
dorum szpe ortis, densifloris; pedicellis brevibus, tomentosis; calycis tomentosi 
lobis abbreviatis, obtusis, oblongo-ovatis, faucem corolla nequaquam attingentibus ; 
corolla sordide viridis tubo mediocriter elongato-urceolari, intus medio villosulo, 
ceterum glabro vel aliquatenus puberulo, faucibus carnosulo-annulato, lobis ovatis 
obtusissimis, extus tomentosis, intus glabris; corons phyllis abbreviatis, obtusis ; 
antherarum membrana parvá, ovatá, stigma paullo excedente; stigmatis rostro 
pyramidali-subgloboso, muriculato; polliniis inferne attenuatis, in stigmate incum- 
bentibus, retinaculo insigniter longioribus. 
Hab. Florescit ad Santa Cruz mens. Nov. (N. 407.) 
Caulis proventu circa 0'5 cm. diam., zetate aphyllus, dense corticatus, cortice cinereo diu 
plus minus pilifero. Folia 4:5-6:0 em. long., 3:0-3:3 em. lat., aliquanto insequilatera, 
margine ciliata, petiolis ascendentibus 1:0-1:3 em. long. suffulta. Pedunculi usque 
ad 0*5 em. long., sepe subobsoleti, dense tomentosi. Calyx 0'8 cm. long., usque ad 
