NOTES ON NEW AND OLD GENERA 1 89 



simple change involved in the disappearance or atrophy of corolla. 

 Even if the latter is represented by the disk the stamen insertions 

 were besides supposed to be carried downward to this disk or 

 on this disk or they would have necessarily disappeared with the 

 corolla itself in the process of variation phylogenetically. 



In addition to this important character of W. rubra (Hook.) 

 Greene, we find the calyx rather irregular as distinguished from 

 the plants it has been associated with. It is, therefore proposed 

 to make it the type of a new genus named in honor of Dr. J. 

 Lunell of Leeds, North Dakota, a most zealous and able botanist 

 of that region, to whom as collector and phytographer American 

 botany as well as local is greatly indebted, and whose contribu- 

 tions of the botanical information on the plants of that region 

 have frequently appeared in this journal. 



Lunellia no v. gen. 



Plantae erectae habitu Wulfeniae Bullii, rhizomate crasso. 

 foliis basalibus petiolatis in caule quidem sessilibus alternis; 

 floribus in spicis densis omnino apetalis; calice in segmenta in- 

 aequalia diviso; staminibus duobus cum stylo exsertis, aequilongis 

 in exteriore margine disci hypogyno insertis; capsula emarginata, 

 compressa, obcordata, duas habente cellulas. 



Erect plants with the habit of Wuljenia Bullii with thick 

 rhizomes, petioled basal leaves and sessile alternate cauline ones, 

 flowers in dense spikes without corolla. Calyx deeply divided into 

 unequal segments. Stamens two exserted with the style, and 

 inserted on the outer margin of the hypogynous disk: filaments 

 slender. Capsule emarginate not much compressed, two-celled. 

 Type the following: 



Lunellia rubra (Hook.) Nwd. 



Gymnandra rubra Hook. Fl. Bor. Am. IL, p.. p. 103, (1840). 



Syniheris rubra (Hook.) Benth. in DC. Prod. X., p. 455, (1846.) 



Wuljenia rubra (Hook.) Greene Erythea, 1. c. 



Besseya rubra (Hook.) Rydberg 1. c. 



Beside this the new genus contains also the plants called 

 Syntheris wyomingensis A. Nelson and Synthens gymnocarpa 

 Heller both without corolla, plants of the western United States. 



Enetophyton nov. gen. 

 Planta parva scaposa erecta simplex, (nunquam ramosa) 



