664 CXCI. PROTEACEiE. 



capsule or follicle, 1-2-valved, 1-2-many-seeded, 1-celled, or 2-celled by a false 

 septum formed by membranes detached from the testa of the contiguous seeds and 

 separable into 2 plates. Seeds usuallj' ovoid or globose in the nuts, compressed and 

 winged in the follicles, exalbuminous ; hilum basilar or lateral. Embryo straight ; 

 radicle sometimes near the hilum, sometimes diametrically opposite to it, always 

 inferior. 



[Tribes of Proteacew according to Meissner in De CandoUe's ' Prodromus ' : — 



Sub-order I. Nucumentacej!. — Fruit an indehiscent nut or drupe. Flowers usually 

 solitary in the axil of eacli bract. 



Teide I. PEOTEiE. — Anthers inserted at the base of the short spreading perianth-lobes, 

 all perfect (upper rarely imperfect) ; cells 2, parallel, adnate. ].. — (Australia). Fetropliila, 

 Isopogon, Adenanfhos, Stirlingia. 2. — (South Africa). Aulax, *Leucodendron, *Protea, Leuco- 

 spermum, Mvmetes, Serruria, Nivenia, Sorocephalus, Spatalia. 



Teibe II. CoNOSPEEMEJi. — Anthers at first cohering by the adjacent cells, then free. 

 Hypogynous scales 0. Ovary obconic, 1-celled, 1-ovuled. (Australia.) Synapliea, Cono- 

 spemmm. 



TiRiBB III. FEANKLANDlEiE. — Anthers perfect, cells adnate to the perianth-tube. Ovule 1. 

 Nut dry, with a pappus-like coma. (Australia.) Franldmidia. 



Tribe IV. PERSOONlE.ai. — Anthers perfect, inserted on the perianth-segments. Ovules 2, 

 rarely 1. Drupe usually fleshy. 1. — (Australia). Bellendena, *Persoonia, &c. 2. — (South 

 Africa). Fauria, Brahejvm,. 3. — (America). Andropetalum, ^Ouevma. 



Sub-order II. Folliculaees. — Fruit dehiscent, 1-2-valved, I- oc-seeded. 



Tribe V. Greville^s!. — Ovules 2-4, collateral. Seeds without an intervening membrane 

 or substance. 1. — (Australia). Helicia, Macadwmia, Xylomelum, Orites, Lanibertia, Orevillea, 

 Hakea, KnigMia, &c. 2. — (Asia). Selicia. 3. — (America). Bhopala, Adenostephanwn, 



Tribe VI. Embotheiej;. — Ovules several, imbricate, in 2 rows. Seeds usually separated 

 by an intervening substance. 1. — (Australia). Telopea, Lomatia, GardwelUa, Stenocarpus. 

 2. — (America). OreocalUs, Frriboihrmm, Lomatia. 



Tribe VII. Banksieji!. — Ovules geminate. Seeds usually separated by a woody or mem- 

 branous plate. Flowers in dense cones or heads. (Austraha.) Ba/nlcsia, JDryandra. — Ed.J 



Proteacea, placed by Eadliclier in tlio same class with Elaagnece, Thymeleee, Santalacece, and Laurineee, 

 have been separated from them, with ElcEagnets, by Brongniart, and thus form a well-defined and 

 nmch more natural group. These two families, in fact, are closely allied in habit, the simple perianth 

 with valvate testivation, perigynous stamens, free 1-celled ovary, ovule with inferior micropyle, exalbu- 

 minous seed, &c. ElaagnecB only differ in the always regular flov/er, the stamens alternate with the 

 perianth-lohes in the isostemonous flowers, and the fruit included in the perianth-tuhe, which is fleshy 

 outside and bony within. 



Proteacece approach Santalaoece in the valvate nestivation, isostemony, and stamens opposite to the 

 perianth-lohes ; but Santalacece diffiir in the inferior ovary, ovule, albuminous seed, and superior radicle. 

 Proteaceai have also some analogy with T/iyinelecE, founded on the absence of petals, the 1-celled ovary, 

 and the exalbuminous embryo ; but Tliymelece difl'er in the imbricate aestivation, the usually diplostemonous 

 flower, the alternation of the stamens with the calj'x-lobes in the isostemonous flowers, and the superior 

 radicle. Beyond these, the most important character separating Proteacece from the families above-named 

 resides in the micropyle invariably facing the base of the ovary, whatever may be the structure of the 

 ovule and the situation of the hilum. 



