5 3 2 POL YTHE CANTHUM 



Polythecanthum Van Tiegh. (Ochna p.p.). Ochnaceae. 4 S.E. As. 



Polythecium Van Tiegh. ()chna p.p.). Ochnaceae. 50 palaeotrop. 



Polytoca R. Br. Gramineae (i). 5 Indomal. 



Polytrema C. B. Clarke. Acanthaceae (iv. B). 3 Malay Peninsula. 



Polytrias Hack. Gramineae (2). i Java. 



Polyura Hook. f. Rubiaceae (i. 2). i Assam. 



Polyxena Kunth. Liliaceae (v). 10 S. Afr. 



Polyzygus Dalzell. Umbelliferae (in. 5). i S. India. 



Pomaceae (Warming) = Rosaceae (sub-fam. II). 



Pomaderris Labill. Rhamnaceae. 20 Austr., N.Z. 



Pomatosace Maxim. Primulaceae. i China. 



Pomatostoma Stapf. Melastomaceae (i). 4 Borneo. 



Pomatotheca F. Muell. (Trianthemap.p. EP.). Aizo. (n). i Austr. 



Pomax Soland. ex Gaertn. Rubiaceae (n. 7). i E. Austr. 



Pomazota Ridl. Rubiaceae (i. 2). i Malay Peninsula. 



Pombea Mutis. Inc. sed. Nomen. 



Pome, the fruit of Pyrus, &c. 



Pomegranate, Punica Gr ana turn L. 



Pomelo, Citrus decumana Murr. 



Pometia Forst. Sapindaceae (i). 5 Indomal. 



Pomiform, apple-like. 



Pommereachea Wittmack. Zingiberaceae (i). 2 Burma. 



Pommereulla L. f. Gramineae (10). i India. 



Pomona, an account of fruits. 



Pompnidea Miers. Rutaceae (inc. sed.). (Apocyn. BH.) i Jamaica. 



Pompion, pumpkin, Cncnrbita Pepo L. 



Pond-weed, Potamogeton ; Cape - -, Aponogeton. 



Ponera Lindl. Orchidaceae (n. 6). 8 C. Am., Mexico. 



Ponerorchis Reichb. f. (Habenaria^.^. BH.}. Orchid, (n. i). i Japan. 



Pongamia Vent. (Galedupa Lam.). Leguminosae (in. 8). i Indomal. 



Pontederia L. Porjtederiaceae. 2 Am. Fls. Irimorphic, heterostyled 



(cf. Lythrum). P. crassipes Mart. = Eichhornia crassipes. 

 Pontederiaceae (EP., BH.). Monocots. (Farinosae; Coronarieae BH.). 

 6 gen. with 21 sp. trop. Water plants, floating or rooted, of sympo- 

 dial structure, the successive axes ending in infls. (sympodial cymose 

 pseudo-racemes). Often, e.g. in Eichhornia, the axillary shoot is 

 adnate to the main shoot from which it springs. Sometimes extra 

 branches are formed, and the axis of the infl. is often pushed to one 

 side so that it appears to spring from a leaf-sheath. FIs.-|- , P (3 + 3), 

 persistent ; A 3 + 3, epiphyllous, G (3), 3-loc. with oo anatr. ovules, or 

 i-loc. with i ovule; style long, stigma entire or slightly lobed. Cap- 

 sule or nut. Embryo central in the seed, scarcely, or not, shorter 

 than the rich mealy endosp. Chief genera: Eichhornia, Pontederia. 

 Ponthieva R. Br. Orchidaceae (11. 2). 10 warm Am. 

 Pontya A. Chevalier. Moraceae (i). i Ivory Coast. 

 Pony (W.I.), Tecovia serratifolia G. Don. 

 Poonac, crushed seeds after oil-extraction, esp. Cocas. 

 Poor man's weather glass, Anagallis arvensis L. 



Poortmannia Drake ( Trianaea p.p. EP.). Solanaceae (3). i Ecuador. 

 Poplar, Populus. 

 Popowia Endl. Anonaceae (i). 25 E. Indomal. 



