of Certain Groups of the Class Personatce. 



113 



OROBANCHE.E. Rich. Juss. 

 CALYX divisus, persistens. 



COROLLA tubulosa, hypogyna, irregularis, persistens ! eestivatione imbri- 

 cate. 



STAMINA 4, didynama, fertilia. Antherce basi saepius calcaratse. 

 PISTILLUM 1. Ovarium 1-loculare. Stigma bilobum v. indivisum. 

 CAPSULA 1-locularis, 2-valvis, polysperma. 



SEMINA placentis angustis parietalibus, e valvularum marginibus conflatis 

 inserta, minutissima : testa tenuissime membranacee, areolis subquadratis 

 reticulata : albumen copiosum, cartilagineum. 

 EMBRYO in apice albuminis inversus, excentricus, minutus, subglobosus, 



plerumque indivisus ! Radicula supera, ab umbilico remota. 

 Herbse plerumque parasitica, aphyllse, subcarnosse, rufescentes, squamatse. 

 FJores terminales, solitarii aut spicati, bracteati. 

 OBS. Ordo omninb naturalis facileque definiendus corolla persistenti, semi- 

 num structure, atque habitu diversis.simo. In Lathraee et Orobanchi 

 embryo, ut videtur, indivisus et acotyledoneus, an itaque in cseteris 

 generibus ? 



* Parasitica, aphyllce. 

 1. Orobanche, L. 2. Pbelypsea, Desf. 3. Epiphegus, Nutt. 4. Lath- 

 rsea, L. 5. Hyobanche, L. 6. Alectra, Thunb. 7« ^Eginetia, Roxb. 

 8. Anblatum, Town. 



** Terrestres.foliatce. OBOLARIE^E. 

 9. Obolaria, L. 10. Tozzia, Z» 



CHELONEiE. 

 CALYX 5-partitus, persistens. 



COROLLA tubulosa, hypogyna, irregularis, decidua, limbo 5-lobo. 

 STAMINA 4, didynama, fertilia ; quintum sterile. Antherce biloculares, 



muticse : Ioculis anice conrluentibus. 

 STIGMA indivisum. 

 CAPSULA bilocularis, polysperma. 



SEMINA erecta, compressa, margine membranacea. Albumen carnosum. 

 EMBRYO erectus, foliaceus. 



Herbas v. SufFrutices (Amer Septentr.). Folia opposita. Inflorescentia pa- 

 niculata v. spicata. 



OBS. Tribus Bignoniaceis et Pedalineis proxime affinis, calyce tamen sub- 

 polyphyllo, stigmate indiviso, seminibus erectis albuminosis facile dis- 

 tinguitur. 



1. Chelone, L. 2. Penstemon, Mitch. 



ARAGOACE^o 

 CALYX 4- 5-phyllus, persistens, basi bracteatus, 



COROLLA hypocrateriformis, regularis, decidua: limbo 4-partito, patenti, 



sequali, oestivatione convolute. 

 STAMINA 4, sequalia, sinubus corollse inserta. Filamenta basi barbata. 



Antherce bilobse : Ioculis apice omnino confluentibus. 

 PISTILLUM h Ovarium biloculare. Stylus filiformis. Stigma capitatum, 



indivisum. 



CAPSULA 2-locularis, 4-valvis : Ioculis 4-spermis. Dissepimentum utrinque 

 placentiferum, demum liberum. 



SEMINA erecta, imbricata, compressa, margine membranaceo-alata : testa 

 membranacee, reticulate. Albumen copiosum, carnosum. 



EMBRYO rectus, axilis, inclusus. Cotyledones oblongse, compressse. Radi- 

 cula teres, obtusa, cotyledonibus triplo longior, infera. 



Frutices (Nov. Granat.) facie cupressine ramosissimi, ramis oppositis. Folia 

 quadrifariam imbricata, coriacea, integerrima. Flores axillares, solitarii, 

 subsessiles, albi. 



VOL. XIX. NO. XXXVII, — -JULY 1835. 



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