A Synapsis of Plant Phyla 71 



Family 169. Nolanaceae. Herbaceous or suffrutescent pros- 

 trate plants, with alternate, entire leaves ; calyx 5-parted ; corolla 

 long funnel-shaped; stamens 5, inserted on the corolla; pistils 5 

 or united. Xolaiia. (Pf. IV, 3b, i.) 



Family 170. Solanaceae. Herbs, shrubs (and trees) with al- 

 ternate leaves ; corolla-limb more or less plicate ( rarely imbri- 

 cated) ; ovary mostly 2-celled; ovules many. Lyciuni, Atropa, 

 Hyoscyanins, Physalis, Copsicntn, Solaniini, Datura, Nicotiana, 

 Petunia. (Pf. IV, 3b, 4.) 



Order Gentianales. Corolla regular ; stamens alternate with 

 the corolla-lobes, and usually of the same number ; leaves oppo- 

 site (rarely alternate). 



Family 171. Oleaceae. Shrubs and trees (rarely herbs) with 

 mostly opposite leaves; corolla-lobes valvate or o; stamens 2 (or 

 4); ovary 2-celled; ovules i to 3. Syringa^ Olca, Jasminum, 

 Fraxinus. (Pf. IV, 2, i.) 



Family 172. Salvadoraceae. Shrubs and trees with opposite 

 undivided leaves; corolla-lobes imbricated; stamens 4; ovary 2- 

 celled; ovules 2. Salvadora. (Pf. IV, 2. 17.) 



Family 173. Loganiaceae. Plerbs, shrubs, and trees with 

 mostly opposite simple leaves ; corolla-lobes imbricated or con- 

 torted ; stamens 4 to 5 (or indefinite) ; ovary 2- to 4-celled ; ovules 

 I to many. Gclscniiuni, Logania, SpigcUa^ Strychnos. (Pf. IV, 

 2, 19.) ^ 



Famil}- 174. Gentianaceae. Mostly herbs with usually oppo- 

 site undivided leaves ; corolla-lobes contorted, valvate, or indu- 

 plicate ; stamens 4 to 5 (or indefinite); ovary usually i -celled; 

 ovules manv. Ervthraea, Gentiana, Eustoma, Mcnyanthes. (Pf. 

 IV, 2, 50.)' 



Family 175. Apocynaceae. Milky-juiced trees, shrubs, and 

 herbs, with opposite, simple leaves ; corolla-lobes contorted or 

 valvate ; stamens 5 with granular pollen ; ovary 2-celled or the 

 carpels separating ; ovules many. Vinca, Apocynum, Neriiim. 

 (Pf. IV, 2, 109.) 



Family 176. Asclepiadaceae. ]\Iilky- juiced herbs and shrubs, 

 with opposite (or alternate) leaves; corolla-lobes contorted; sta- 

 mens 5, with agglutinated pollen ; ovary of two separated car- 



345 



