Fam. II. Pomaceae. 



Lindl. in Linn. Trs. XIII. 88 — 106. — Bartl. Ord. nat. 399. — Lois. Deslych. Man. des pl. 

 us. indig. I. 211. — Endl. gen. pl. p. 1236. Ench. bot. 655. — G.Don gcn. syst. II. 597. — 



Spach 1. c. II. 49. 



Rosaceae trib. I. Pomaceae Juss. gen. 334. — Rich. Ann. du fruit. 33. — (Trib. VIII.) 



DC. Prodr. II. 626. — Meisn. gen. pl. vasc. 101. (74.) — Subordo Pomaceae Wight & 



Walh.-Arn. Prodr. etc. I. 301. — Subordo Pomeae Lindl. Introd. ed. 2. 145. — Torr. & A. 



Gray Fl. of North Am. I. 462. 



Character familiae. 



Plores regulares, hermaphroditi , rarissime abortu polygami, perfecti. 



Calycis tubus urceolatus, cainpanulatus v. turbinatus, plus minus cum 

 ovario connatus (adhaerens, a<J maturitatem carnosus, carpella fovens) ; 

 limbus superus (epigynus) v. perigynus, 5partitus, laciniis per aesti- 

 vationem imbricatis, persistentibus marcescentibus v. deciduis. 



©iscus (torus) laminaris v. annularis carnosus, parti liberae tubi caly- 

 cini adnatus. 



Corollae petala 5, calycis fauci v. margini disci inserta, breviter un- 

 guiculata, interpositiva, inter se aequalia, decidua v. rarissime persi- 

 stentia, interdum nulla, aestivatione (quincunciali DC.) imbricata. 



Stainijia cum petalis (disco infra petala Sp.) inserta, eorum numero 

 multipla subdefinita (plerumque 20) , marcescentia : filamenta fili- 

 formia v. subulata, libera, aestivatione inflexa ; antlierae introrsae, 

 biloculares, longitudinaliter dehiscentes. 



Pistillum: ovarium e carpidiis (carpellis, carpophyllis) 5, nunc 3 

 vel duobus, rarissime unico, cum calycis tubo et inter se plus minus 

 connatis 1— 2— 3— Sloculare , axi centrali nullo, vertice toro tecto v. 

 nudo; (interdum ovaria 2 — 5 parietalia, inter se libera aut fere libera 

 Sp. — ovaria saepius 5 unilocularia, in stylos totidem simplices coali- 

 tosve desinentia DC.) Ovula in loculis plerumque gemina, collatera- 

 liter adscendentia, anatropa, rarissime solitaria v. plurima (indefinita 

 horizontalia). Styli loculorum numero (2 — 5), tenninalcs v. subter- 

 minales, simplices, liberi v. basi plus minus coaliti. ^tigmata sim- 

 plicia, emarginata aut explanata. 



Fructus (Pomum, Pyridium) baccatus, calycis limbo coronatus 

 (potius e calycis tubo carnoso reddito exortus) , intra sarcocarpium 

 tubo calycino vestitum pericarpium proprium cartilagineum sutura cen- 

 trali dehiscens vel osseum indehiscens includens (interdum carceruli 

 2 — 5 distincti Sp.), Ioculis (carpellis) abortu saepissime monospermis 

 aut di- raro polyspermis; cndocarpium cartilagineuin, chartaceum, 

 membranaceum v. osseum. 



$emina adscendentia (in loculis polyspermis horizontalia) , angulo in- 

 terno affixa, funiculo brevissimo, testa (spermodermio) coriacea v. 

 cartilaginea, rhaplie ad chalazam oblongam apicalem producta pro- 

 minula, percursa, Iiilo laterali subbasilari, cndopleura (perispermio) 

 membranacea (pelliculari). Albumen nulluin. 

 RomerSynops. Pl. — Fasc. III. 7 



