90 ON A NEW AMERICAN ORIMMIA. 



Tab. II. Fig. 1- Plants, nat, size; f. 2. Single plant; /. 3, 

 Calyptra;/. 4. Tooth of the peristome : — magnified. 



IX. — On anew N, American Grimmia, %W. Wilson, Esq. 



[ With a Figure.'^ 

 (Tab. III.) 



Gbimmia Drummondii. 



Caule subsimplicijfoliispatulis lineari-lanceolatis aciitis sub- 

 carinatis siccitate crispatis, capsula ellipticA exannulatii, oper- 

 culo rostrato, calyptra sulcata, peristomio immerso. 



Hab. On trees in Louisiana. Drummond. 



Caules semunciales, erecti, aggregati. Folia patulo-reflexa, 

 lineari-lanceolata, acuminulata, integerrima, canaliculata, eras- 

 si uscula nervo subcontinuo, siccitate valde crispata, absque ni- 

 tore. Se^abrevis, foliis triple longior. Ca/?s«/a erecta, oblongo- 

 elliptica, ore rubro. Peristoma denies sedecim, infra mar- 

 ginem capsulae adnati, conniventes, late subulati, subinde per- 

 forati, apice vix fissi, externa facie leniter trabeculati, satu- 

 rate fulvi, basin versus rubri. Calyptra campanulata, flavo- 

 brunnea, sulcata, basi lacera, capsula brevier, illamqiie 

 amplectens. Operculum e basi convexo rostratum, rectum, 

 capsula paulo brevius. 



The absence of an annulus in this species, the immersed 

 peristome, and the more crisped dry foliage, are marks 

 whereby this species may* be readily distinguished from Gr. 

 Muhle7ibergii and Gr. crispata^ between which it is interme- 

 diate in size. 



Obs. In the original Cape specimens of G. crispata the 

 capsule is subpyriform, i.e. tapering at the base, and the teeth 

 of the peristome have no medial line, though so represented 

 in the figure in Miscel. Bot. ; an annulus is present — W- 



Reference to Figure.— Tab. III. Fig. 1. Plants, nat. size; 

 f. 2. Magnified ; /. 3. Capsule with calyptra ; / 4. Leaf 

 magnified ; /. 5. Apex of leaf, highly magnified ; /. 6. Sec- 

 tion of leaf; /, 7. Portion of the peristome. 



