54 
ILLUSTRATIONS OF THE GENUS CAREX. 
Culmus, folia [infra), vaginae pedunculique pilosi. Culmus 
1 gU-i-ped.j gracilis, fbliis vaginantibus munitus, basi rudimen- 
tis foliorum purpnreis tectns; pars spicas gerens 3-10 poll, 
longa. Folia 14-2 lin. lata, culmo breviora. Bractece vagi- 
natse : infima culmum subaequans vel eo brevior. Vagina in- 
lima 1-3 poll, longa. Pedunculi omnes exserti, setacei: infi- 
mus 1-34 poll- longus. Spicce 8-18 lin. lcmgse, 11-2 bn. latte: 
terminalis semper basi subdimidiatim mascula; foeminese alter- 
natim approximatse : infima 1^-5 poll, remota. Squamce albse, 
nervo viridi: masonite lanceolatse, laxse, acuminatse, acutte: 
inferiores vel superiores cuspidatte : fceminete inferiores longius 
cuspidatae, perigynium stepe subtequantes vel eo longiores. 
Perigynium l T 8 ,y-2 T y bn. longum, -,V~ro bn. latnm. Ache- 
nium , a 0 - f 0 bn. longum, plus T 6 , T bn. latum, ovale, triquetrum, 
stipitatum, pallidum, punctatum. 
Allied to G.formosa, but differing from it in the female lower 
spikes, etc. 
132. C. Davisii (Torrey); spicis 3-4 rarius 2-5 cylindri- 
cis vel oblongis crassiusculis pedunculatis pallidis, termi¬ 
nal! basi rarius omnino mascula, rcliquis fcemineis approxi¬ 
mate, superioribus ssepe evaginatis, erectis, inferioribus 
basi laxifloris subinserte vel plus minus exserte peduncu¬ 
latis, infima ssepe subremota nutanti; bracteis culmo 
longioribus; stigmatibus 3 brevibus; perigyniis ellip- 
ticis turgide ventricosis rostratis, ore emarginato biden- 
tato, rostro ad margines stepe scabro, tenuiter nervatis 
pellucide demum ferrugineo-punctatis flavescenti-viridi- 
bus, squama ovata acuta vel obtusa stepe truncata vel 
emarginata albida medio viridi nervata longe valideque 
cuspidata latioribus longioribus vel ( cuspidem ) subsequan- 
tibus ; culmo foliisque pilosis.—C. Davisii, Sc/no. et Tor. 
l.c. 326; Carey, l.c. 522; Sartwell, Mrs. n. 85. C. 
aristata, Dewey, Sill. vii. 277 [non Brown). C. Torrey- 
ana, Deioey, Sill. x. 47. Carex, n. 46, Mulil. 1. c. 254. 
(Tab. CXLIII.) 
Hab. In America septentrionali, in pratis humidis. 
New England to Ohio and Illinois. 
Culmus, folia [infra), vaginae pedunculique pilosi. Culmus 
1 - 21 -ped., firmus, foliis vaginantibus munitus, basi rudimen- 
tis foliorum purpureis fibrillosis tectus; pars spicas gerens 24-8 
poll, longa. Folia 14-3 bn. lata : superiora stepe culmo lon- 
giora. Bractece inferiores vaginatte, culmo subinde multum 
longiores. Vagina infima 4~24 pob. longa: superiores breves 
vel obsolette. Pedunculi stepe inserti, vel inferiores plus minus 
exserti: infimus 2-24 poll, longus. Spicce 8-20 bn. longte, 
2- 24 bn. latte, omnes subcontiguae, erectae, vel infima 2-4 poll, 
remota, nutans : summa rarius omnino, plerumque subdimidi¬ 
atim basi mascula. Squamce albte, medio viridi, plus minus 
cuspidatte, masculae lanceolatae: foeminese ovatae: inferiores 
acutte, longius cuspidatae; superiores obtuste, saepe subtrun- 
catae vel emarginatae. Perigynium lye — r %- lin. longum, 1.-1 yy 
bn. latum. Achenium lyy bn. longum, yy bn. latum, ovale, 
utrinque acutum, triquetrum, stipitatum, basi styb apiculatum, 
flavidum, punctulatum. 
I have never met but with one specimen, among very many in 
which the terminal spike was entirely male, but Muhlenberg and 
Torrey allude to such as having been observed by them. Muhlen¬ 
berg describes the stigmas as two or three. I have never seen less 
than three. The upper leaves and sheaths in the Illinois speci¬ 
mens are occasionally glabrous. 
The broader spikes, more ventricose perigynium, and larger cus¬ 
pidate scales, distinguish this species from its allies. It is more 
common than G.formosa or C. oxylepis. 
133. C. aestivalis (Curtis); spicis 4 rarius 3-5 cylindricis 
anguste linearibus laxifloris erectis olivaceis demum cas- 
taneis, terminali basi mascula, reliquis foemineis approxi¬ 
mate evaginatis, superioribus subsessilibus vel infima 
remota breve vaginata exserte pedunculata basi dissiti- 
flora; stigmatibus 3 ; perigyniis oblongo-ovalibus utrin¬ 
que acutis triquetris, ore integro, tenuiter nervatis oliva¬ 
ceis ferrugineo-punctatis, squama ovato-lanceolata acuta 
cuspidata vel obtusa mutica castanea margine pallida 
latioribus longioribusque; foliis inferioribus vaginisque 
pilosis.—C. aestivalis, Curtis, Gray, Sill. xlii. 28 (1841); 
Dewey, Sill. iii. 172, el iv. 347; Carey, 522; Curtis, 
Sill. vii. 410; Tuck. Bn. 15 ; Kunze, Biedgr. 112. t. 
28; Darlington, FI. Cest. ed. 3. 349. C. Darlingtonii, 
Schweinitz, Herb. C. tabularia, Curtis, MSS. [Herb. 
Torrey .) C. Rugeliana, Kunze, l. c. 189. t. 48. (Tab. 
CXLIY.) 
Hab. In America septentrionali, in montibus. Po- 
kono Mountain, Pennsylvania, Dr. Darlington and Mr. 
Townsend, June, 1828. West Chester, Pennsylvania, 
on Slaty Hills, Townsend. Table Mountain, North Caro¬ 
lina, Curtis. In montibus altioribus Carolinae Septen- 
trionalis, passim, Dr. Gray etMr. Carey, 1841. In mon¬ 
tibus Tennessee, Bagel, 1842. 
Folia inferiora [utrinque) bracteseque ad margines vaginseque 
pilosse. Culmus 1-2-ped., setaceus, scaber, basi foliatus, foliis¬ 
que vaginantibus munitus; pars spicas gerens 14-4 vel 9 poll, 
longa. Folia 1-14 fin. lata, graminea: radicalia culmo lon- 
giora: culmea eo breviora : inferiora juvenilia utrinque pilosa, 
omnia basi ad margines ciliata : demum omnino glabra eva- 
dunt. Bractea infima culmo longior, foliacea, basi ad mar¬ 
gines ciliata: reliquse setacese, breviores. Vagince foliorum 
pilosse : ea bractese inferioris ssepe obsoleta, vel 1-8 lin. longa, 
glabra vel intus apice pilosiuscula. Pedunculi setacei, scabri: 
infimus 3-18 lin. longus. Spica terminalis sessilis, basi ssepe 
subdimidiatim mascula, 9-20 lin. longa. Spicce fceminece 
5 lin. ad 2 poll, longse, 1 lin. latse, erectse: superiores sessiles 
vel subsessiles : omnes evaginatse, approximatse, vel infima 2-3 
rarius 6 poll, remota, breve vaginata, basi flosculis alternis dis- 
sitis attenuata. Squamce pallide castanese : masculse majores, 
obtusse, muticse, vel inferiores acutse, cuspidatae: foeminese in¬ 
feriores ovato-lanceolatse, acutse, cuspidatae; superiores obtusse, 
muticse vel mucronatse. Perigynium lyy- T y lin. longum, 
iA-A lin. latum, utrinque (prsesertim plene maturum) acu¬ 
tum, achenium arete vestiens. Achenium fy lin. longum, yy 
lin. latum, ellipticum, stipitatum, basi styli apiculatum. 
A C. oxylepide differt, culmo setaceo; foliis inferioribus 
utrinque vaginisque solum pilosis; spicis gracilioribus, laxiflo¬ 
ris; perigyniis minoribus, erostratis, ore integro; squamis 
ssepe muticis. 
A C. gracillima differt, culmo setaceo; spicis laxifloris, erec¬ 
tis, evaginatis vel infima breve vaginata; perigyniis utrinque 
acutis, nec ventricosis; squamis longioribus; foliis angustiori- 
bus, vaginisque pilosis. 
Ur. Darlington, in company with Mr. Townsend, discovered 
this well-marked species in 1828, on the Pokono Mountain, 
Pennsylvania, and M. Schweinitz named it after him, but omitted 
to publish it. Mr. Curtis (I believe subsequently) found it on 
the Table Mountain, North Carolina, and his description of it is 
given by Dr. Gray (Sill. Journ. xlii. 28) in his interesting ac¬ 
count of the excursion he made with Mr. Carey, in 1841, to the 
mountains of that State. Kunze (t. 28) has given a good 
figure of it. I have referred his C. Bugeliana (t. 48) to it, on 
the authority of specimens which he sent to Sir W. J. Hooker 
under that name, and which included C. aestivalis, mixed with 
C. clebilis, and a Garex which I referred in the paper in vol. xx. 
