— 79 — 



E sectione Hibiscearum. Ab Hibisco differt : i° stigmata io, discoidea, 

 sessilia, stylum coronantia; 2 carpella 10; 3° capsula; ad centrum cavœ; 

 placentaria mox divergentia ; axis communis perbrevis ; carpella supra basin 

 sutura ventrali libéra, inter se lateraliter coalita, coronam efformantia. 

 A Lagunaria differt : i° folia pilis squamiformibus haud vestita; 2 stig- 

 mata 10, sessilia, apicem styli coronantia; 3° fructuscentro cavus, coronam 

 simulans; 4' epicalyx 3-4 bracteatus, bracteis magnis, calycem vixattingen- 

 tibus. 



3. C. ionkinense Gagnep., sp. nov. 



Herba dura vel suffrutex, metralis et ultra, densissime hispida, pilis stel- 

 latis, luteis, rigidis, 2-3 ramosis. Folia cordata, orbiculari-lobata, grosse 

 dentata, supra pilis simplicibus, appressis conspersa, subtus tomentosa, 

 pilis densissimis, aliis rlexuosis, aliis stellatis vestita, lobis acutis breviter 

 triangulis; nervi 7-9, palmati, subtus pilis simplicibus ornati ; petiolus la- 

 minam aaquans vel ea major, pilis stellatis, densissimis vestitus; stipula? 

 triangula;, hispidœ, basi i-auriculatae, auricula brevi. Flores magni, albidi, 

 dein rosei, petalis effusis; pedunculus petiolo multo major, ad apicem ar- 

 ticulatus, validus, pilis stellatis, densis vestitus. Epicalyx hirsutus, basi 

 umbilicatus, bracteis triangulis, liberis, magnis, accrescentibus. Calyx 

 valde effusus, 5-lobatus, epicalyce 2-3-plo major, lobis breviter triangulis, 

 parte coalita 3-4-plo minoribus. Petala late obovata. columna staminea 

 duplo majora, extus pilosula. Antherœ numcrosœ, haud sessiles. Ûvarium 

 tomentosum ; stylus columnam stamineam vix superans. Fructus calyce du- 

 plo minor, in eo inclusus extus intusque hirsutus, centro capsula; cavo 

 et piloso; cocci 10, divergentes, aristati ; semina biseriata, glabra, verru- 

 culosa. — Folia 7-1 3 cm. diam. ; stipula; 10-12 mm. longa;, 8-10 mm. lata;. 

 Flores 8 cm. alti, 12 cm. expansi; pedunculus i5-2o mm. longus. Epica- 

 lycis bracteae i5 mm. lata;, 18-20 mm. longa;. Calyx 4cm. longus. 



Tonkin : entre Phuong-lam et Cho-bo, n° 3712 [Balansa). 

 — Laos : Luang-prabang(TAo/ , e/). 



4. Decaschistia Monretii Gagnep. sp. nov. 



Frutex semi vel metralis, ramis molliter et dense tomentosis, pilis intri- 

 catis. Folia elliptica vel oblonga, basi vix cordata et emarginata, apice 

 rotundata, supra molliter tomentosa, subtus incano-tomentosa, margine 

 undulata; nervi 3, saspe 1, subtus prominentes, latérales usque ad 10 

 utrinque, invicem prope marginem anastomosantes, cum venulis retem 

 laxumefformantes;/?e/io/HS brevis, tomentosus, apice glandulosus ; stipula; 

 subulata;, utrinque 1 velgeminatae. Floresaxillares, terminales, subcapitati, 

 dein spicam laxam efformantes; pedunculi tomentosi. Epicalyx 10-1 1 brac- 

 teatus, pilosus, bracteis lineari-acutis, vix ad basin coalitis. Calyx molliter 

 tomentosus ; lobi 5, late trianguli, acuti, 3-nervi, usque ad médium connati. 



