LOASACÉES. 465 
(GENERA 
I. LOASEÆ. 
1. Lonsa Apans. — Flores hermaphroditi regulares ; receptaculo 
tubuloso, clavato, ovoideo v. subgloboso, concavitate germen intus 
adnatum fovente margineque perianthium gerente. Sepala 5, æqualia 
v.iInæqualia. Petala 5, alterna, cucullata v. saccata, nune in corollam 
campanulatam conniventia, imbricata. Stamina ©, in fasciculos 9 
oppositipetalos disposita cumque perianthioinserta. Squamæ cucullatæ 
2-5, eum petalis alternantes. Staminodia 10, per paria squamis oppo- 
sita, filiformia. Germen inferum, 1-loculare; stylo vario, apice stig- 
matoso aculo v. 3-9-fido, sæpe cavo. Placentæ parietales 3-5; 
ovulis ce, anatropis. Fructus capsularis, rectus v. nunc (Blumenbu- 
cha) spiraliter tortus, apice 3-5-valvis (Euloasa, Grammatocarpus) 
v. longe 5-10-valvis (Blumenbachia). Semina œ, varia; embryonis 
albuminosi cotyledonibus foliaceis v. sæpius plano-convexis. — Herbæ 
erectæ v. volubiles, hispido-setosæ ; sétis sæpius urentibus ; foliis oppo- 
sitis v. alternis, integris, lobatis, pinnatisectis v. decompositis; 
floribus axillaribus v. lateralibus, sessilibus (Grammatocarpus) v. 
pedunculatis, sæpe in racemos v. in cymas plus minus compositas 
dispositis. (America trop. et extratrop.) — Vid. p. 458. 
2, Mentzelia L.' — Flores fere Loase ; receptaculo cylindrico, 
obeonico v. obpyramidato, turbinato v. ovoideo. Sepala 4-5, vel 
1. Gen 670. in Ann. Mus., V, 24. … Organog., 394, — Fucnide Zucc., in Abh. 
— DC.  Protr. [LEUR 348. A cb y Gen., n. 5111. Baier. Akad. pe: IV, 1, t. 1. — Wicrosperma 
, Gen., I, 804, n. 7. 8 N,in Dict. 00K., féon., t, 234. — Acrolasia PRESL, Rel. 
Bat “a chrom. pe pe Sims, in Bot. Mag, Heænk., U, 39, t. 55. — Chrysostoma Lir., in 
1487. — Envz., Gen, n. 5112. — PAYER, Linnœæa, XV, 263. 
