OF ARTS AND SCIENCES. 293 



bipurtitus ; labiis patentibus, postico bipartite lobis oblongis, antico 

 trilido majore, lobis obovatis, iiitermedio emarginato. Stamina 4, 

 fauci inserta, subiuclusa : filamenta brevia, antica villosissima : antherae 

 uniloculares, ovato-oblongse, anticae secus connectivum villosae, posticae 

 cum filamento fere nuda^. Stylus filiformis : stigma euiarginatum. 

 Ovarii loculi biovulati. Capsula oblonga, subteres, nee stipitata nee 

 basi attenuata, disperma. Semina ovalia, subturgida, furfuracea. — 

 Suffrutex glaucesceus ; ramis gracilibus; foliis lanceolatis integerrimis, 

 (loralibus ad bracteas calycibus breviores reductis ; floribus parvulis 

 graciliter interrupte spicatis ; corolla ut videtur purpurasceute. 



PuiNGLEOPiiYTUM LANCEOLATUM. — Northwcstem borders of 

 Mexico, in Sonora ; on rocky hills fifty miles below Altar, and thirty 

 miles from the Gulf of California, coll. (7. G. Pringle, 188-1. Genus 

 allied to Holographis of Nees, which, altiiough unknown to the authors 

 of the new Genera Plantarum, has been identified by Hemsley with 

 no. 1211 of Coulter's Mexican collection, from Zimapan. Nees does 

 not describe the upper lip of the corolUi : in Coulter's specimen this 

 is erect and entire. In the present genus it is 2-parted, as much dis- 

 posed to be patent as the lower lip ; the throat is not ampliate, only 

 two of the anthers are pubescent, and the filaments of these are 

 woolly-bearded. 



This genus is dedicated to- the discoverer, Mr. C. G. Pringle of 

 Vermont, one of the most zealous and enterprising of our botanists 

 and the best of collectors, whose explorations in former years have 

 brought many new and interesting plants to light. The present genus 

 and the following new genera are among the fruits of very arduous 

 and hazardous excursions made during this year from Arizona into the 

 northwestern borders of Sonora, where no botanist had hitherto pene- 

 trated. The lengthened name here chosen is necessary on account of 

 tlie Pringlea in Cniciferce, whicli commemorates the celebrated Sir 

 John Pringle of a century ago. 



PHAULOTHAMNUS, Nov. Gen. Phytolaccoceariim. 



Flores dioici. Calyx 4-partitus, segmentis herbaceis rotundntis 

 valde imbricatis. Discus nullus. 3fasc. Stamina 12, circa rudi- 

 mentum (nunc evanidum) ovarii inserta : filamenta distincta, tenuia, 

 antheris lineari-obloncris basifixis breviora. Foem. Ovarium ovoide- 

 um, prorsus liberum, unilooulare, uniovulatum. Stigmata 2, filiformia. 

 Ovulum in funiculo basilare erectum, amphitropum. Fructus tenui- 

 coriaceus, indehiscens, calyce erecto semi-inclusus. Semen pericarpium 



