24 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 69 



seen no form of that species at all approaching this in size, or in 

 the very regular, elegantly pectinate, robust branching ; the stems also 

 are quite free from radicles. 



CALLIERGON KENIAE Dixon, sp. nov. 

 (Plate 2, fig. 12) 



Gracile, stramineum vel rttfo-flaviditm; caules circa 5-6 cm. alti, 

 haud cuspidati, molles, flexuosi, subsimplices, interdum valde tenelli. 

 Folia sat laxe disposita, erecta, nitida, parva, 1.5-2 mm. longa, late 

 ovato-oblonga, perconcava, apice subcitcullato, plerumque breviter 

 late apiculato, marginibus planis integerrimis. Costa angnsta, ad 

 basin usque ad 50 /x saepius circa 35-40 fx lata, longe infra apicem, 

 saepe quidem apud 2/3 folii longitudinem desinens. Cellulae superi- 

 ores breviuscule linear cs subflexuosae, circa 150-200 fx longae, 5-6 fx 

 latae, supra sensim abbreviatae, apud apicem multo breviores latio- 

 resque ; basin versus laxiores saepe pulchre aurantiacae, rectangu- 

 lares, ad angulos perlaxae, tenuiores, subvesiculosae, alas decurrentes 

 majusculas formantes. Cetera ignota. Dioicum videtur. 



Hab. : Loc. 3,630 meters, No. 1592b. With Anlac omnium turgidum 

 var. papillosum.. 



The affinity of this species is no doubt with C. stramineum, of 

 which it has the weak nerve and the areolation, but it differs in the 

 color and habit, and the leaf apex, and is a more slender plant 

 altogether. It is a much more delicate plant with smaller leaves 

 than the following, which has branched stems, much more crowded, 

 somewhat spreading, scarcely glossy leaves, a stouter nerve, and 

 much more incrassate cells. 



CALLIERGON SARMENTOSUM (Wahl.) Kindt), var. SUBFLAVUM Ferg. 



Loc. 3,630 meters, No. 1339b. A few stems mixed with Rhacomit- 

 r in 111 defoliation. It agrees exactly with the Scotch plant, named 

 as above by Ferguson, but is probably only a slight form or state of 

 a pale color, having a weaker habit and more spreading leaves. 



STEREODON CUPRESSIFORMIS (L.) Brid. 



Loc. 3,630 meters, Nos. 1554, 1570. 



No. 1554 is a rather robust form, apparently growing more or 

 less prostrate on the ground, and with something the habit of var. 

 ericetorum Bry. eur., but browner and more rigid. 



No. 1570 is a very marked form, and worthy of a varietal name, 

 but I hesitate to describe it as new from a doubt whether it be not 



