Specularia. CAMPANULACEiE. 429 



this plant, and of an allied but very distinct species from Louisiana, were described by me in 

 a memoir read before the New-York Lyceum of Natural History, in 1830. Sometimes (in 

 very sterile or shady places) a dwarf form of the plant occurs, in which all the flowers are of 

 the abnormal kind ; as noticed in my Flora of the Northern and Middle States, p. 237. Al- 

 though known to Linnaeus* (who, however, was not aware of their true structure), yet his 

 account of them has been overlooked until quite recently ; and they are unnoticed even in the 

 admirable Monogr. des Campanulees, of Alph. De Candolle. A. de Jussieu (Archives du 

 Museum, 3. p. 84. 1843) says that the Campanula perfoliata cultivated in the Jardin des 

 Plantes, bears the two kinds of flowers ; and that Adolphe Brongniart had discovered in the 

 abnormal ones, the corolla, stamens and stigmas, but that his account of them had not been 

 published. The two kinds of flowers are represented in the plate of Campanula biflora, of 

 Ruiz <^ Pavon, ft. Peruv. 2. t. 200. /. 6, which Alph. De Candolle has, I think, incorrectly 

 referred to Specularia perfoliata. 



Group 4. Ovary free (superior), or sometimes coherent with the calyx, with two or 

 more cells and numerous ovules. Seeds albuminous. Stamens inserted with 

 the corolla, or rarely coherent with its base, as many or twice as many as its 

 lobes : anthers mostly opening by pores or chinks. 



Order LVIII. ERICACEAE. R. B. ; Endl. The Heath Tribe. 



Erice^ & Rhododendra, Jwss., DC. Vaccinie^, DC. Pyrolace^ & Monotropeje, Nutt. 



Flowers regular, or sometimes slightly irregular. Stamens mostly distinct : 

 anthers 2-celled, often appendaged. Style solitary : stigma capitate or lobed. 

 Seeds usually numerous. — Shrubby plants, or sometimes herbs. Leaves 

 undivided, entire, toothed or serrate. 



The pollen, in all the plants of this order that I have examined, is composed (more or less dbtinctly) of three, or 

 sometimes four, united spherules ; as in most Efacridace£. 



* Campanula eaule simplici, foliis cordatis amplexicaulis, <1. sessilibus " Obs. Flores plurimi primi 



corolla staminibus, stylo stigmatoque destitui, Tidctur fructibus perficere et semina : reliqui et seriores flores corolla et 

 «taminibus perfectis gaudent, uti idem in RueUia videre est." Linn. hort. Vps. p. 40, 



