281 ORCHIDACEAE: MILTONIA. 282 
10. MILTONIA ROSINA Bars. Ropr. pseudobulbis 
mediocribus, anguste ovato-oblongis, valde compressis ancipiti- 
busque, junioribus vaginis paucis distichis subfoliaceis vestitis 
vetustioribus denudatis, apice diphyllis; foliis mediocribus, 
anguste ligulatis, apice acutis, inferne longe attenuatis fere 
petiolatis; pedunculo erecto, gracili, foliis paulo longiore, apice 
unifloro, vaginis pluribus longiusculis membranaceis remotius- 
culis longiuscule aeuminatis vestito; bracteis lineari-triangu- 
laribus, longe acuminatis, ovario multo brevioribus; floribus 
majusculis, longiuscule pedicellatis, sepalis petalisque patentis- 
simis, superne valde recurvis; sepalis subaequilongis, ligulato- 
lanceolatis, longiuscule acuminatis; petalis lanceolato-oblongis, 
breviuscule acuminatis, sepalo dorsali subaequilongis; labello 
patenti-subreflexo, sepalis lateralibus paulo longiore, usque ad 
basin libero, late obovato-subtriangulari, apice subtruncata 
et leviter apiculato, basi longe attenuato-cuneato, margine 
satis undulato, utrinque glabro, disco inferne longiuscule tri- 
lamellato, lamellis contiguis, apice paulo dilatatis, mediano 
satis breviore, lateralibus apice paulo divergentibus; columna 
brevi, crassiuscula, glabra, alis angustis, margine undulatis, 
basi productis, clinandrio paulo profundo, immarginato. 
Tabula nostra LIX. Fig. I (habitus cum analysi). 
Miltonia Rosina Barb. Rodr. Gen. et Spec. Orch. Nov. 
I. 99 (1877.) 
RaIzomA oblique repens, flexuosum, teretiusculum, pallide fuscum, 
7—8 mm. crassum; RADICIBUS breviusculis, gracilibus, satis flexuosis, 
simplicibus, canescentibus. PskuDoBULPI paulo distantes, erecti, vix obliqui, 
superne satis attenuati, laeves, nitidi, intense virides, 5'/»—6 cm. longi, 
2 cm. lati. Fora erecto-patula, leviter arcuata, basi conduplicata, superne 
leviter concava vel subplana, supra intense viridia, subtus satis pallidiora, 
15—16 cm. longa, 1'/> em. lata; nervo mediano supra profundiuscule 
canaliculato, subtus satis prominente; nervulis lateralibus paulo distinctis. 
PEDUNCULUS leviter sigmoideo-flexuosus, teretiusculus, laevis, intense viridis, 
20 em. longus, 2 mm. crassus; VAGINAE arcte adpressae, laeves, albidae, 
2—2'/2 em. longae. BRACTEAE subadpressae, valde concavae, albo-virides, 
15—16 mm. longae. FLos nutans, sepalis petalisque luteo-fulvis, cinereo- 
et fusco-maculatis. OvARIUM lineari-subclavatum, obscure trigonum, intense 
viride, cum pedicello gracili 3—3!/s cm. longum. SEPALA paulo concava, 
basi leviter attenuata, 3'/2 em. longa, 8 mm. lata, lateralia falcata, diver- 
gentia. Prrata subplana, valde falcata, basi breviter attenuata, 3—3'/» cm. 
longa, 1 em. lata. LABELLUM vix convexum, albo-roseum, basi lineis 
pluribus purpureis breviusculis notatum, 4'/» em. longum, superne 3 cm. 
latum. CoLuxNA recta, obtuse trigona, antice leviter canaliculata, albo- 
flavescens et fusco-maculata, 7—8 mm. longa. ANTHERA oblique conica, 
glabra, laevis, albo-rosea. CaPsuLA ignota. — Species mihi haud visa; 
descript. ex op. supra cit. et ex icon. a cl. Bars. Ropr. communic, An 
hybrida naturalis inter M. spectabilis Linpi, et M. cuneata LixoL.? 
Habitat in arboribus prope Petropolis prov. Rio de Janeiro : Barbosa 
Rodrigues. — Floret Martio. 
11. MILTONIA REGNELLII Rzxicur. F. pseudobulbis 
mediocribus, oblongis vel oblongo-ligulatis, valde compressis 
ancipitibusque, junioribus vaginis pluribus distichis magnis 
foliaceisque vestitis, vetustioribus fere denudatis, apice 
diphyllis; foliis majusculis, subcoriaceis, lineari-ligulatis, apice 
subabrupte et oblique acutis, inferne longissime attenuatis et 
plus minusve distincte petiolatis; peduneulo communi erecto, 
satis gracili, simplici, foliis saepius longiore, inferne vaginis 
pluribus brevibus scariosis apiculatis acutis vel breviter acumi- 
natis remotisque vestito, superne laxe 3—5-floro; bracteis 
brevissimis, subcoriaceis, margine scariosis, anguste triangu- 
laribus, acutis, basi amplexicaulibus; floribus mediocribus, 
longiuscule pedicellatis, segmentis submembranaceis, patentis- 
simis, apice saepius leviter recurvis; sepalis oblongo-lanceo- 
latis, breviter acuminatis, lateralibus paulo longioribus, basi 
brevissime connatis; petalis elliptico-oblongis, acutis, tenuiter 
1—9-nervulosis, sepalo dorsali aequilongis; labello patenti- 
reflexo, sepalis lateralibus subaequilongo, sessili, usque ad 
basin libero, late obovato-orbiculari vel obcordato, indiviso vel 
interdum obscure trilobato, apice leviter retuso vel late 
rotundato et minute apiculato, basi vix attenuato, margine 
leviter undulato, utrinque glabro vel supra vix puberulo, disco 
inferne breviuscule trilamellato, lamellis subcontiguis, mediano 
satis breviore apice dilatato, lateralibus apice attenuatis; 
columna brevi, crassiuscula, glabra, alis angustis, margine 
integerrimis vel subtiliter denticulatis, basi non vel paulo 
productis, clinandrio truncato, immarginato. 
Tabula nostra LX. Fig. I (habitus cum analysi). 
Miltonia Regnelliù Reichb. f.! in Linnaea XXII. 851 
(1848), XXV. 252, Xenia Orch. I. 129. 130 et 133. tab. 47, 
in Hamb. Gartenz. XVI. 422 (1860); Lindl. Folia Orch., 
Milt. 2; Otto et Dietr. Allgem. Gartenz. 1855. p. 323; Walp. 
Ann. Bot. III. 561; Hook. in Bot. Mag. tab. 5436; Batem. 
Sec. Cent. Orch. tab. 182; Du Buyss. L’ Orchid. 387; De Puydt, 
Les Orch. 291. tab. 26; Nichols. Dict. of Gard. II. 369; 
Watson, Orch. 319; Stein, Orchideenb. 355; Veitch, Man. Orch. 
PI. VIII. 103; Bois, Orch. 165; Williams, Orch. Grow, Man. 
edit. 7. p. 521; L. Lind. Orch. Ezol. 839; Journ. des Orch. 
VI. 169; Autran et Dur. Hort. Boiss. 336; Cogn. in Diet. 
Ic. Orch., Milt. tab. 7; Sander, Orch. Guide 126. 
Oncidium Regnellii Reichb. f. in Walp. Ann. Bot. VI. 
760 (1863). 
Miltonia cereola Lemaire in IU. Hort. XII. tab. 546 
(1865); Du Buyss. L'Orchid. 386. 
Amor perfeito do matto Brasiliensibus (secund. cl. 
Edwall). 
RADICES numerosae, densiuscule fasciculatae, elongatae, graciles, satis 
flexuosae, simplices, canescentes. PskUDOBULBI leviter aggregati, erecti vel 
erecto-patuli, recti vel leviter obliqui, superne longe attenuati, laete virides, 
primum laeves, demum obscure paucisulcati, 5—8 cm. longi, 1!/3—2'/ cm. 
lati. Forta erecta vel erecto-patala, inferne conduplicata, superne paulo 
concava et satis recurva, supra laete viridia, subtus satis pallidiora, 25 ad 
45 em. longa, 1'/i—2'/» cm. lata; nervo mediano supra profandiascule 
canaliculato, subtus satis prominente; nervulis lateralibus utrinque 3—4, 
gracilibus, in sieco utrinque facie leviter prominentibus. PepuxcuLus 
communis plus minusve flexuosus, leviter compressus, laevis, laete viridis 
et interdum leviter dilute fuscescens, 30—50 cm. longus, 2—3'/e mm. 
crassus; VAGINAE arcte adpressae, laeves, pallidae, 1—1?/» cm. longae. 
PepiceLLI patuli vel erecto-patuli, graciles, recti vel paulo arcuati, cum 
ovario lineari-subclavato obtuse trigono et tenniter G-sulcato 3—5 cm. 
longi. BnacrEAE adpressae, valde concavae, virides, 4—7 mm. longae. 
FLonrs subnutantes, sepalis petalisque albis interdum flavescentibus vel 
dilute roseis. Seara satis concava, dorso superne leviter carinata, inferne 
satis attenuata, tenniter 9-nervulosa, 10—11 mm. longa, dorsale 3 cm. 
longum, lateralia leviter obliqua, 32—34 mm. longa. PETALA leviter 
concava, paulo obliqua, basi breviter attenuata, 3 em. longa, 12—14 mm. 
lata. LABELLUM leviter concavum vel subplanum, tenuiter multinervulosum 
nervulis ramosissimis, laete roseum, roseo-purpureo venosum, margine 
albidum, basi lineis pluribus brevibus radiantibus pallide luteis notatum, 
