144 s (o LXXXIV. RUBIACEA. » [Spermacocece. 
interposita. , Semina plano-convexa, umbilico ventrali, antice longitudinaliter sulcata, 
testa membranacea granulata, albumine corneo; embryo axilis, cotyledonibus latis, 
radicula infera.— Herb: robuste v. graciles, erectze v. decumbentes, pglabrz v. hirtze, 
caule 4-gono. Folia opposita, sessilia v. petiolata, lineato-nervosa. Flores minuti, in 
glomerulos longe spicatos v. in capitula terminalia globosa paniculata dispositi, breviter 
pedicellati, bracteolis setaceis v. 0. Fructus minimus. 
Species 3 v. 4, Amerieze tropieze incole. Genus distinetum caule herbaeoo cum inflorescentia 
Diodie et floribus Triodontis, cui referend:z sunt Diodia spicata, Miq. ; D. barbata, Hook. et Arn. ; 
D. hispidula, DC., et D. alata, Nees. 
316. €rusea, Cham. et. Schlecht. in Linea, v. 165, non Rch.—PFlores hermaphroditi. 
Calycis tubus ovoideus v. obovoideus, compressus; limbi lobi 4, elongato-subulati, 
denticulis interdum interjectis, persistentes. Corolla infundibularis, tubo gracili, fauce 
glabra; limbi lobi 4, patentes, oblongi v. lanceolati, valvati. Stamina 4, ori corolle 
inserta, filamentis elongatis filiformibus tortis; antherze dorso supra basin affixw, 
lineari-oblongs, longe exsertz. Discus tumidus. Ovarium 2-loculare; stylus capil- 
laris, stigmate simplici, v. styli rami 2 breves lineares ; ovula in loculis solitaria, septo 
medio affixa, amphitropa. Capsula didyma, 2-cocca, coccis indehiscentibus ab axi per- 
sistente secedentibus. Semina oblonga . . .—Herbze ereciz v. ascendentes, interdum 
parvule, glabrz pubescentes v. hirsutz, caulibus 4-gonis. Folia opposita, ovata v. 
lanceolata, nervosa. Stipule in vaginam ciliatam cum. petiolis connatsw, persistentes. 
Flores mediocres, rosei, in capitula bracteis 4 involucrata dispositi, paleis sepissime 
immixti. : 
Species ad 10, Mexiei et Ameriez centralis incole. DC. Prod. iv. 5606. Walp. Rep. ii. 4600; vi. 
31. Hook. et Arn. Bot. Beech. 1. 99. c. Jacg. Hort. Schenbr. t. 256 (Spermacoce). Bot. Mag. t. 
1558 (Spermacoce). 
317. Gaillonia, 4. Hich. in Mem. Soc. Hist. Nat. Par. v. 153, t. 15, f. 3.— Calycis 
tubus ovoideus ; limbus 2-5-dentatus, v. dilatatus scariosus et 5—7/-crenatus, v. setis 4—b- 
plumosis instructus, post anthesin szepius accrescens, persistens. Corolla infundibularis, 
fauce nuda ; limbi lobi 5, rarius 4, patentes, valvati. Stamina 5, rarius 4, tubo v. fauci 
corolle inserta (nonnulla interdum demissius inserta), filamentis brevibus ; antherc 
dorso basi affixz, lineari-oblongz, ineluss v. exsertzee. Discus inconspicuus. Ovarium 
2-loculare ; stylus filiformis, ramis 2 brevibus linearibus; ovula in loculis solitaria, 
septo medio affixa, amphitropa. Fructus ovoideus, 2-coccus, coccis teretiusculis in- 
dehiscentibus. Semina oblonga, teretiuscula, umbilico ventrali, facie longitudinaliter 
sulcata, testa membranacea, albumine corneo; embryo axilis, cotyledonibus planis, 
radieula elongata tereti infera.— Fruticuli huniiles, rigidi, ramosi, glabri scabri v. 
tomentosi, ramulis teretiusculis. Folia parva, rigida, opposita, linearia v. subulata. 
Stipul:e szpissime in vaginam integram 2-setosam v. 2-spinosam cum petiolis connatz, 
rarius a petiolo remotz v. obsoletz. Flores inter minores, solitarii, v. secus ramos 
cym:e spicati, albi. Fructus parvus. 
Species ad 10, Afriez borealis, Asizque occidentalis calida incola. DC. Prod.iv. 574. Walp. 
Rep. vi. 32 ; Anm. v. 106. 
Genus a Jaub. et Spach, Ill. Pl. Or. i. 133, in subgenera sequentia commode divisum : 
l. Microstephus. Calycis limbus minutus, ó-dentatus. Folia floralia caulinis conformia. Stipule 
heteromorphze, basi tantum cum foliis connatz, — Flores in cymas dichotomas axillares et extra-alares 
dispositi. Jaub. et Sp. 1. c. t. 74 ad 18. 
2. Hymenostephus. | Calycis limbus pelviformis, scariosus, ó—7-crenatus, acerescens. Folia omnia 
cum stipulis connata, floralia gradatim minora. Stipule heteromorphzm. Flores secus ramos flori- 
feros spieati. Jauó. et Sp. 1. c. t. 19. 
3.' Plerostephus. Calycis limbus 2-partitus, post anthesin accrescens. Flores secus ramos flori- 
feros spicati, vaginis stipularibus elongatis immersi. aub. et Sp. l. c. t. 80. 
4. Ptilostephus. Calycis limbus membranaceus, 4-5-partitus, segmentis setaceis plumosis. Flores 
