296 



7. Leptochilus Curupiræ (Lindm.) C. Chr. — Fig. 7. 



Syn. Acrostichum Lindman, Hedwigia 43:311. 1904. — A. scalp- 

 turatum Lindm. Arkiv for Bot. 1:253 tab. 8 fig. 9, 1903 (non Hetero- 

 neuron scalpturatum Fée). 



Lamina folii sterilis late ovata, 3 — 4'^'=™ longa, pinnata cum impari. 

 Pinna terminalis longe stipitata, prolongata, proliféra. Pinnæ laterales 

 10 — 15jugæ, fere horizontales, subæquidistantes, lineares, omnes fere 

 æquilongæ, 2 — S'/'o''*^™ longæ, 2'='" latæ, sessiles vel subsessiles, basi trun- 

 catæ, versus apicem longe acuminatæ, glabrae, subtus ad costam sqaamis 

 paucis ciliatis subrigidis instructæ, membi^anaceæ, firmæ, brunneo-virides, 

 superiores sæpe proliferæ. Margo pinnarum crenatus crenis denticulatis 

 versus apicem grosse serratus ; pinna terminalis in speciminibus visis 

 rotundato-lobata. Venæ modo L. contaminoidis anastomosantes; maculæ 

 sæpe biseriatæ, raro triseriatæ. 



This species is a very critical one. It can, possibly, be a form of 

 L. contaminoides, the venation of the two being nearly the same (see 

 Lindman's figure), but the shape of the lamina, edges and bases of the 

 pinnæ, scales, coulour, the long-stipitated terminal pinna are characters 

 of L. Curupiræ, v^'hich do not agree with the corresponding ones of L. 

 contaminoides. 



Brasilia. Matto Grosso: Matto do Gurupira. ad terram silvæ pri- 

 mævæ umbrosam, Lindman, Exped. 1. Regnell A. 3061 (HS). 



Fig. 7. Entire plant, Via nat. size, to compare with Fig. 6a. 



8. Leptocbilus Iteriiouilii (Kuhn) G. Ghr. — Fig. 8 a-b. 

 Syn. Acrostichum Kuhn; Ghrist, Bull. Soc. bot. Belg. 35 : 197. 1896. 



— Gijmnopteris Diels, Nat. Pflanzenf. 1^:201. 1899. 



Lamina folii sterilis ovato-elongata, 4 — 1 O*^'™ longa , pinnata cum 

 impari. Rachis versus apicem anguste alata. Pinnæ 10 — 25 jugæ, 

 distantes , superiores sessiles , inferiores breviter petiolatæ , lanceolatæ, 

 12 — 15"" longæ, 2— 2V2'^™ latæ, acuminatæ, basi truncatæ vel rotundatæ, 

 tenuiter membranaceæ, læte- vel flavo-virides, glabræ et omnino nudæ. 

 Margo pinnarum leviter crenato-serratus vel grosse crenatus crenis obtuse 

 denticulatis. Gostulæ fere ad marginem conspicuæ, prominulæ, 3 venis 

 curvatis transversariis 3 maculas curvatas formantibus connectæ. Venæ 

 transversariæ dorso 2 — 4 appendices apicibus incrassatis (radios inter- 

 ruptos) ferentes (i. e. nervatio fere cum nervatione gen. Campii Preslii 

 congruens), vel maculæ curvatæ 1—2 radiis in 2 — 3 maculas minores 

 plerumque irregulariter appendiculatas divisæ. Venulæ exteriores liberæ 

 apicibus incrassatis marginem vix attingentes vel inter se anastomosantes. 



— Squamæ rhizomatis stipitisque lineari-subulatæ, ciliatæ, ad l<^^"Mongæ. 



